nucleotides are the basic
unit for which macro molocules

Answers

Answer 1

The correct answer to question is Nucleic Acids, (DNA) AND (RNA).  

hope this helps let me know.

Answer 2
i’m sorry i don’t know the answer this

Related Questions

Currently, the world population is about

Answers

Answer:

approximately 8billion

Tell me how bacteria make their energy and other chemical products.

Answers

Answer:

Bacteria can obtain energy and nutrients by performing photosynthesis, decomposing dead organisms and wastes, or breaking down chemical compounds. Bacteria can obtain energy and nutrients by establishing close relationships with other organisms, including mutualistic and parasitic relationships.

Explanation:

I hope it helps! Please mark my answer as bräinliest! Thank You!

1. The structure that's not a component of wall of sponges is

Answers

Answer:

Chitin.

Explanation:

The structure that is not a component of wall of sponges is Chitin. Their body comprise of calcareous or siliceous spicules or protein spongin fibres. Choanocytes are the distinctive cells located in the interior body walls of sponges. Sponges are similar to other animals in many characteristics such as they are multicellular, heterotrophic, lack cell walls and produce sperm cells in order to produce offspring sexually and also different from animals due to lack of tissues and organs.

A. the influence of environment on the expression of a particular genotype. B. the expression of a dominant phenotype in a heterozygote. C. the expression of one gene masking the effects of another gene. D. quantitative traits that diminish or intensify a particular phenotype. E. the increased expression of a particular trait when a hybrid species is formed.

Answers

The question is incomplete, the complete question is;

Penetrance and expressivity are related to

 

A. the expression of a dominant phenotype in a heterozygote.

B. the increased expression of a particular trait when a hybrid species is formed.

C. the expression of one gene masking the effects of another gene.

D. quantitative traits that diminish or intensify a particular phenotype.

E. the influence of environment on the expression of a particular genotype.

Answer:

the influence of environment on the expression of a particular genotype.

Explanation:

In genetics, we define penetrance as the proportion of individuals in a given population carrying a particular gene/allele which leads to the expression of the particular trait associated with that gene/allele.

Expressivity is defined as the degree of expression of a given phenotype  by individuals who possess a particular genotype. Expressivity shows the extent of variation in expression of genes by individuals having a particular genotype.

Both penetrance and expressivity has to do with the influence of environment on the expression of a particular genotype.

Organisms are either eukaryotes or prokaryotes. Prokaryotes are further classified into the domains Archaea or Bacteria, while all eukaryotes are in the domain Eukarya.

a. True
b. False

Answers

Answer:

This is true

Explanation:

Complete the comparison of the metabolic pathways leading to thymine in DNA and thymine as a modified base in tRNA.

Thymine in DNA occurs as the result of thymidylate synthase creating _______________ , which then undergoes ____________ to ____________, then to __________, and incorporated into DNA by ___________.

Answers

Answer:

The question is incomplete, the complete question is as follow:

Thymine in DNA occurs as the result of thymidylate synthase creating _______, which then undergoes _______ to _______, then to _______, and incorporated into D N A by _______. Thymine in tRNA arises ________, by an S-adenosylmethionine-dependent _______ of a ______ residue in RNA.

Answer:

Thymine in DNA occurs as the result of thymidylate synthase creating dTMP, which then undergoes phosphorylation to dTDP, then to dTTP, and incorporated into DNA by DNA polymerase. Thymine in tRNA arises posttranslationally, by an S-adenosylmethionine-dependent methylation of a UMP residue in RNA.

Explanation:

Thymidylate synthase is a key enzyme that catalyzes the synthesis of 2′-deoxythymidine-5′-monophosphate (dTMP) from 2′-deoxyuridine-5′-monophosphate (dUMP). This enzyme catalyzes the addition of a phosphate group (phosphorylation) of dTMP in order to form thymidine 5'-diphosphate (dTDP). Once synthesized, dTMP can be metabolized to deoxythymidine triphosphate (dTTP), which is a precursor for DNA biosynthesis. On the other hand, transfer ribonucleic acid (tRNA) is methylated after the molecule is synthesized. The transfer of the methyl group is catalyzed by an S-adenosylmethionine–dependent methyltransferase that catalyzes the methylation of uridine monophosphate (UMP) using SAM (S-adenosylmethionine) as the methyl donor.

Why might an individual with AIDS have difficulty fighting off otherwise harmless infections? please answer!! last question I have!!! ​

Answers

Answer:

The HIV virus that causes AIDS kills T-cells. T-cells are responsible for fighting off infections. So someone with AIDS has a reduced number of T-cells and are unable to fight off infections that are harmless to other individuals.

state economic importance of anaerobic respiration in plants​

Answers

Answer:

Anaerobic respiration is economically significant since many of our meals are generated by anaerobic bacteria. To ensure its survival, the yeast must convert to anaerobic respiration. Carbon dioxide and ethanol are generated. Bread may also be made with yeast.

OAmalOHopeO

Which structures allow lycophytes to grow bigger than mosses and liverworts?
A. gametophytes and sporophytes
b. xylem and phloem
C. haploid and diploid
D. roots and stems

Answers

The structure that allows lycophytes to grow bigger than mosses and liverworts is xylem and phloem which is option B

Lycophytes are spore bearing vascular plants. Being a vascular plant, they possess vessels ( vascular tissues) which include:

ylem: this is used for conducting water usually from the root to the rest of the plant partsPhloem: this is the vascular tissue that is used to conduct food( sugar) produced in the leaves of plants to other parts of the plant.

The possession of the vessels makes the lycophytes appear bigger.

Mosses and liverworts belongs to the plant phylum Bryophyta. They do not have any vascular tissues that can be used to conduct water and food. This restricts their size.

Therefore, the structure that allows lycophytes to grow bigger than mosses and liverworts is xylem and phloem

Learn more about xylem and phloem here:

https://brainly.com/question/2002070

Answer:

xylem and phloem

Explanation:

Lycophytes have specialized tissue that transports nutrients and provides structural support.

A tall plant has been found, but its zygosity is unknown. Tall is dominant over short height. The following can be done to determine its zygosity: _________.
a. Let it self fertilize then analyze the progeny
b. Cross to a true breeding short plant
c. Cross to a heterozygous tall plant
d. Cross to a true breeding tall plant

Answers

Answer:

b. Cross to a true breeding short plant

Explanation:

Describe urine formation

Answers

Explanation:

Capillaries of kidneys filter the blood and the essential substances like glucose, amino acids, salts and the required amount of water are reabsorbed. Excess water and nitrogenous waste in humans are converted to urine.

hope it helps.stay safe healthy and happy...

Fred loves La Paz, Bolivia so much that he decides to stay there for a couple years. All of the following changes could be considered a compensatory mechanism in response to the chronically decreased oxygen content EXCEPT
a. an increase in amount of circulating red blood cells.
b. an increase in oxygen extraction by perfused cells.
c. an increase in hemoglobin’s affinity for oxygen.
d. a decrease in heart rate.

Answers

Answer:

d. a decrease in heart rate.

Explanation:

As the altitude rises, the number of oxygen molecules in the air decreases. Lower oxygen levels at high altitudes stimulate the release of erythropoietin (EPO), which is associated with the increased red blood cells, i.e., it enables more oxygen molecules to be transported to cells and tissues. Moreover, at high latitudes, the increased hemoglobin (Hb)–oxygen affinity helps to safeguard arterial O2 saturation and thus mitigates the effects of low oxygen concentration in arterial blood (arterial hypoxemia). Finally, oxygen extraction depends on an appropriate supply of oxygen in the blood vessels. An increased oxygen extraction occurs when there is an inadequate circulating blood volume or when the number of red blood cells decreases below the normal levels.

Which trait is totally determined by genes

Answers

Answer:

hair color is determined by genetics

Explanation:

Eye color, hair texture or color, unattached earlobes or attached.

Whose argument is stronger regarding the SAC curves and the LAC​ curve? A. The draftsman since the lowest point on each SAC curve will have a horizontal tangent line which only occurs at the lowest point on the LAC. B. Jacob Viner since the SAC curves can be adjusted slightly and still keep their​ U-shape in a way that makes their lowest points end up on the LAC curve. C. Jacob Viner since the​ long-run average cost curve must be composed of the lowest points on any individual​ short-run average cost curve. D. The draftsman​ since, while it is true that the points of tangency of the SAC curves with the LAC curve are at each SAC​ curve's minimum, it is impossible to illustrate it accurately.

Answers

NB: This is a business question, not biology.

Answer:

SAC (Short-run Average Cost) and LAC (Long-run Average Cost)

The stronger argument regarding the SAC (Short-run Average Cost) curves and the LAC (Long-run Average Cost) curves is:

A. The draftsman since the lowest point on each SAC curve will have a horizontal tangent line which only occurs at the lowest point on the LAC.

Explanation:

The costs of all factors of production become variable in the long run.  But in the short-run, some costs are variable, and some are fixed.  When the producer starts operating over the long run period, it can then operate without the constraints imposed by the presence of the fixed-cost factors. Therefore, in the long run, the average cost (LAC) is equal to the short-run average cost (SAC) because there is an unconstrained minimum average cost at all output levels.

Prelab Information
Purpose Explore the molecular process of building proteins from the information carried by RNA
using a laboratory procedure.
Time Approximately 45 minutes
Question How are proteins built using the information provided by a molecule of RNA?
Prediction RNA determines the sequence of amino acids in proteins and polypeptides by a two-step process: transcription of DNA produces mRNA in the nucleus, then translation
of the mRNA to tRNA takes place at the ribosome in the cytoplasm.

Answers

Answer and Explanation:

Proteins are built using information from RNA, because proteins are made up of amino acids that are arranged in a specific sequence for each protein. This amino acid sequence is determined by RNA, which forms groups of three consecutive nucleotides, which will signal the position that each amino acid must assume to form a protein.

In summary, we can state that the DNA starts the transcription process to create the mRNA, which will have the nucleotides transported by the tRNA from the nucleus to the cell's ribosome, so that there, the nucleotides are organized in a specific sequence, forming amino acids, which will constitute the protein.

All amswers are correct on

Below are several good possible questions. Which one most closely resembles your question?

litterally choose any they all right

You have a microorganism you know is both fastidious and which normally lives in human lungs. Which medium might this organism have the highest probability of growing on and why

Answers

Answer:

It is likely that this microorganism grows in enriched culture media.

Explanation:

As shown in the question above, the microorganism that lives in the lungs is extremely demanding. This means that this microorganism is very difficult to be cultivated in a culture medium, as it requires specific nutrients and in specific amounts to be able to develop. These microorganisms are called fastidious microorganisms and need an enriched culture medium to develop.

Enriched culture media are those that have a high range of nutrients in their composition. These culture media are highly nutritious and for this reason, they are the ideal environment for demanding microorganisms, as it can efficiently meet the needs of this organism.

One of the distinguishing characteristics of nervous tissue is how difficult it is to repair damage to nervous tissue. Explain factors limit neurogenesis in the CNS of adults, why is it so hard to repair a damaged nerve

Answers

Answer:

Inhibitory influences from neuroglia, and the absence of growth-stimulating cues.

Explanation:

Neurogenesis in adults is limited by Inhibitory influences from neuroglia, mainly from oligodendrocytes, and the absence of growth-stimulating cues that are present during fetal development. It is so hard to repair a damaged nerve because nerve cell like other cells can't divide and increase in number, they can't renew themselves. Due to no division, the nerve cells does not increase in number and therefore can't repair themselves.

ason Kimble's study of the Archaea in Snowy River in Fort Stanton Cave showed that Archaea play an important role in __________.

Answers

Answer:

Ecosystem.

Explanation:

Archaea play an important role in ecosystems with organisms that derive or produce energy from oxidation of methane. Many of Archaea are bacteria which are often a major source of methane in such environments and they can play a role as primary producers. Archaea is important for scientists because it has unique ecological roles and can also generate energy differently i.e. responsible for producing biological methane which no eukaryotes or bacteria can do that.

Writing Assignment
One of the main functions of connective tissue is to integrate
organs and organ systems in the body, Discuss how blood
fulfills this role.

Answers

Answer:

Major functions of connective tissue include: 1) binding and supporting, 2) protecting, 3) insulating, 4) storing reserve fuel, and 5) transporting substances within the body .Blood integrates organs and organ systems by transporting and exchanging fluid with various organs and organ system to allow them to function and work properly allowing the organism to survive

In large populations, small fluctuations in survivorship or reproduction among individual organisms are unlikely to affect allele or genotype frequencies in the population.

a. True
b. False

Answers

Answer: True.

Explanation:

A population is defined as the set of individuals that inhabit a given geographic area. A population has a certain allele frequency, which is the measure of the relative proportion of alleles in a given population, expressed as a percentage or unit. It is estimate using the number of times the allele is found in a locus and dividing it by the total number of alleles. While the genotypic frequency refers to the number of times that each of the genotypes generated by the two-by-two combinations of the alleles involved in the locus under study appears in relation to the total number of genotypes (which will be equal to the total number of individuals included in the study).

The population can be increased or decreased according to the birth and death rates. Generally, unless specific alterations occur, such as the spread of a disease, immigration, emigration, natural disasters, and others, the size of the population will remain constant. This means that the birth rate is quite similar to the death rate. And the larger the population, the more difficult it is to disturb this balance between births and deaths. So if small fluctuations in survival or reproduction occur between individuals, it is unlikely that this will affect the frequency of alleles and/or genotypes.   This is explained using the Hardy-Weinberg principle states that the genetic composition of a population remains in equilibrium as long as no mutation occurs, and nor natural selection nor any other factor acts. After a generation of random mating, the frequencies of the genotypes of a locus are fixed at an equilibrium value. Then, the genetic variation in a population will remain constant from one generation to the next in the absence of extreme disturbing factors such as those mentioned above (diseases, natural disasters, and others).

Note that for this principle to be fulfilled, the population must be diploid (have two alleles of each gene), must reproduce sexually in a random manner, and must be large enough to minimize the effect of genetic drift (random fluctuations in allele frequencies from one generation to the next, due to random events that can cause certain traits to become dominant or disappear from a population).

The neurons that carry from the brain to the muscle are called ?

Answers

Answer:

Motor Neurons

Answer:

The neurons that carry messages to the muscles are called motor neurons.

Câu 4: Nghiên cứu về lạm phát nằm trong đối tượng của…
a. kinh tế học vi mô.
b. kinh tế học vĩ mô.
c. kinh tế học thực chứng.
d. kinh tế học chuẩn tắc.

Answers

Answer:

Explanation:

B. Kinh tế học vĩ mô

hi,I was feeling so bored so I give this question What is climate change and what r the causes of climate change?​

Answers

Answer:

Climate change is the global phenomenon of climate transformation characterized by the changes in the usual climate of the planet (regarding temperature, precipitation, and wind) that are especially caused by human activities

Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down forests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming. Humanity’s increased use of fossil fuels – such as coal, oil and gas to generate electricity, run cars and other forms of transport, and power manufacturing and industry

Deforestation – because living trees absorb and store carbon dioxide

Increasingly intensive agriculture – which emits greenhouse gases like methane and nitrous oxide

Which is another name for observation?

Answers

Answer:

I would say hypothesis  is what we use for science as a guess, but also monitoring is a good one.

Explanation:

Another name for observation is inspection.

What is a controlled variable?

Answers

Answer:  A controlled variable or constant variable is a variable that does not change during an experiment.

Explanation:

A controlled variable or constant variable is one which the researcher holds constant (controls) during an experiment. It is also known as a constant variable or simply as a control.The control variable is not part of an experiment itself it is neither the independent nor dependent variable but it is important because it can have an effect on the results gotten.

example of a controlled variable is temperature.

2Which term describes the two groups of plants that do not need water to reproduce?
A. spermatophytes
B. cotyledons
C. embryophytes
D. Paleozoic plants

Answers

Answer:

A

Explanation:

.............................spermatophytes...........................

hormones stimulate certain endocrine glands to secrete hormones.

Answers

Answer:

hope its helps you

Explanation:

please like and mark brainlis

Endocrine gland/ source of hormone Hormone Target organ or tissue
Anterior pituitary (adenohypophysis) ACTH (adrenocorticotrophic hormone) Adrenal cortex
FSH (follicle stimulating hormone) Ovaries / testes (tubules)
LH (luteinizing hormone) Ovaries / testes (Leydig cells)
GH (growth hormone)

Which mineral is produced when two atoms of iron chemically combine with three atoms of
oxygen?
1. garnet
2. pyrite
3. magnetite
4. hematite

Answers

answer is D or 4
Explanation: Hematite is created with two iron atoms to three oxygen atoms, and magnetite, with three iron atoms to four oxygen atoms, which are both iron oxides.

The natural mineral form of iron oxide is called hematite  The mineral,  which contains 70% pure Fe, ranges in color from metallic dull to vivid black to steel-gray.  Thus, option D is correct.

What atoms of iron, chemically three atoms of oxygen?

Oxides of many significant metals are common. Iron oxides include hematite (Fe2O3), which has a ratio of two iron atoms to three oxygen atoms, and magnetite, which has a ratio of three iron atoms to four oxygen atoms. The most magnetic mineral is magnetite.

On the surface of the Earth, it is the mineral that is most common. There are numerous other applications for hematite.

It is employed in the production of pigments, polishing, heavy media separation, jewelry making, and home energization. In addition to these, it has therapeutic properties.

Therefore, hematite mineral is produced when two atoms of iron chemically combine with three atoms of oxygen.

Learn more about iron here:

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I need to know which ones to check off

Answers

The instructions don’t really count toward your grade, if you really wish to learn from then you should just try your best and take notes on what you beed to know. If you’re just using Brainly to get past the class just guess on the instructions as they do not effect your grade very much at all if at all.

How are rivers and streams able
to keep algae from growing?



Plz help

Answers

Answer:

answer is A just did it on my acellus

Explanation:

The correct answer is option (A) the running water will sweep the algae downstream and keeps it from growing.

What is algal bloom?

The rapid increase in production of algae in freshwater and marine water system is called algal bloom. It is also known as the discoloration of water from the algal pigment.

What causes algal bloom?

Excessive nitrogen and phosphorus cause  overgrowth of algae.The overgrowth of algae consumes oxygen and blocks sunlight from underwater plants. When the algae eventually dies, the oxygen in the water is consumed.

As the river and streams are always flowing it will sweep the algae which will prevent it from growing further.

learn more about rivers and streams below,

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