Answer:
23
Explanation:
Molecules of DNA are composed of long chains of?
two long polynucleotide chains
A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand. Hydrogen bonds between the base portions of the nucleotides hold the two chains together
Molecules of DNA are composed of long chains of nucleotides.
What are nucleotides?Nucleotides are the building blocks of DNA and RNA adenine (A), thymine (T), guanosine (G), and Cytosine (C. In RNA, uracil (U) is present instead of thymine.
The pentose sugar is the ribose sugar in RNA and deoxyribose sugar in DNA. In deoxyribose sugar, oxygen is absent from the 3' carbon.
Phosphate groups are attached through the 5-C of pentose sugar by an ester bond. One polynucleotide chain is formed when the phosphate of one nucleotide forms a phosphodiester bond with the sugar of another nucleotide.
A double-stranded structure is formed by base pairing between nucleotides. The adenine binds to thymine by two hydrogen bonds and guanine binds to cytosine by three hydrogen bonds.
Therefore the molecules of DNA are composed of long chains of nucleotides.
Read more about nucleotides, here
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⚠️Second time posting this⚠️
Geneticists use Punnett Squares to show all the possible outcomes of a genetic cross and to determine the probability of a particular outcome.
True
or
false
Answer:
True
Explanation:
Scientists only use punnet squares if they want to determine what the possible outcomes will be for the offspring.
Hope this helps, if it is wrong, I am sorry. T^T
Answer:
true
Explanation:
Please help I will mark brainliest
Its b
Mark me brainliest
Explanation:
Answer:
B
Explanation:
because I already did that
What kind of inheritance is horse color an example of?
A. Complete dominance
B. Incomplete dominance
C. Co-dominance
Which of the following best describes the cell below?
Capsule
Cell wall
Plasma membrane
Cytoplasm,
Ribosomes
Plasmid
P
Bacterial Hagellum
Nucleoid circular DNA)
OA
prokaryotic cell
OB
plant cell
OC.
protist cell
OD
eukaryotic cell
Pls I need answers at least one answer of any of the questions
The _______________ rate describes the rate at which the atmosphere gets colder as the air gets thinner at higher altitudes.
Answer:
Lapse rate
Explanation:
What type of mutation is shown in the example below?
Original DNA: ATCGTCGTCGT
Mutated DNA: ATCGTCGTGT
If the process of meiosis shown to the right proceeds
normally, how many
chromosomes will cells A, B, C, and D have?
B
Answer:
If I’m correct it’s 15
Explanation:
What parts of the body make up the central nervous system
Answer:
brain and spinal cord
Explanation:
that's it
Once assembled, what is the key to a protein's unique function?
Answer:
Once assembled, what is the key to a protein's unique function? The manner in which proteins fold is the key to their function
The endoplasmic reticulum is an important region where protein folding occur. Because proteins need to be appropriately folded into distinct structures, this is an essential biological function.
What is importance of protein folding?Proteins that are misfolded or are unfolded improperly impart to the pathophysiology of many illnesses.
Protein folding is a highly delicate process that is regulated by a variety of external stimuli, such as temperature, pH, chemicals, molecule crowding, electric and magnetic fields, and temperature.
These elements affect a protein's capacity to fold into the appropriate functional forms.
Therefore, Protein folding give unique properties to protein functions.
Learn more about protein folding here:
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If a cell suddenly stopped producing transfer RNA, which of the following processes would be immediately affected?
Answer: DNA
Explanation: The RNA is a big affect on the DNA because, there will be no repairs of the DNA leading to cancer
1. What Does DNA stand for?
Answer:
deoxyribonucleic acid
What portions of RNA are cut out and discarded during the process of RNA editing
Answer:
introns are portions of RNA that are cut out and discarded.
Explanation:
What are the advantages and disadvantages to produce few offspring that are extensively cared for and protected?
Why do the cells used for reproduction only have half (½) of the DNA that other cells have?
Answer:
Because each chromosome has a pair, these cells are called "diploid" cells. On the other hand, human sperm and egg cells have only 23 chromosomes, or half the chromosomes of a diploid cell.
Explanation:
PLEASE HURRY I AM TIMED!!!
Are aliens real? Explain your answer.
Answer:
No, not according to any sciences (unless you mean aliens as in immigrants)
Explanation:
There is no way that we are the only living thing in the entire world. There has to be another species out there. They might be wondering if there is another living thing out in space too.
the biotic factors of each land biome are determined by its ___
climate
organisms
location
size
Answer:
climate
Explanation:
How many chromosomes would you expect to be in the daughter cells of the mosquito after mitosis? When starting with 6
Answer:
i think it would be 12 since during mitosis it creates identical daughter cells which doubles up cells.
Explanation:
Answer:
12
Explanation:
Which of the following are sources of extra nutrients that can cause algae to overgrow in water due to HUMAN activity? CAREFULLY select all options that apply. List the answers.
dissolved oxygen in water
treated waste water
viruses
combined sewage overflow (CSO)
fertilizers
cleaning products
dog poop on the streets of NYC
water running over rocks
(This is 7th grade science)
How is the earthworm limited by being a skin breather?
Answer:
Earthworms need oxygen just like humans, but they don't have lungs like we do. They have a special skin that allows them to “breathe” oxygen right through it. ... This means the amount of oxygen inside the earthworm will always be less (lower concentration) than the area outside of the earthworm (higher concentration).
Answer:
It won't survive under water? mabye..... i don't think it sent the full question
How are herbivore and carnivore alike
Answer:
They both obtain energy by consuming other organisms.
Explanation:
Hope this helps<3
Answer:they both gather energy from other organisms.
Explanation:
In the seventeenth century, Francesco Redi performed experiments using raw meat placed in jars.
• Half of the jars were covered, and half were left open,
• Redi noticed that the meat in the sealed jars did not have maggots, but the meat in the open jars did have maggots.
Redi concluded that only flies could make more flies,
.
Which part of the cell theory corresponds to Redi's findings?
Answer: B
Explanation:
''New cells come from the existing cells'' is a part of the cell theory which corresponds to Redi's findings.
Experiment performed by Francesco RediFrancesco Redi conducted an experiment in which he showed that living organisms come from other living organisms. This worked combine with the work of other later scientists, helped to develop the third part of the cell theory which is cells come from other living cells.
Learn more about cell theory here: https://brainly.com/question/3966602
What are some examples of nutrients that
circulate in blood? Check all that apply.
red blood cells
glucose (a simple sugar)
amino acids
✓
fats
✓
white blood cells
which layer of the earth is made out of melted metal?
The outer core. A molten nickle- iron alloy.
6B(SCIENCE) (6BB OOB)
4
What is the difference between evaporation and boiling? *
(1 Point)
A) There is no difference - they are exactly the same.
B) Evaporation, unlike boiling, occurs at all temperatures.
C) In evaporation, unlike in boiling, there is no state change.
D) In boiling, unlike in evaporation, the liquid volume reduces.
This question is required.
Select the correct answer
Linda owns a great deal of land. She decides to rent her land to Andrea. However, she places certain restrictions on Andrea regarding the land use. Linda is using
which rights?
ОА. .
use rights
OB.
alienation rights
OC. management rights
OD. ownership rights
Help need answer ASAP !!
Management rights.
_______________________
How can agriculture cause soil pollution?
Agriculture pollution
Explanation:
Agriculture is a main source of pollution in lake water. chemical and fertilzer
Answer:
Pesticides and fertilizers used on crops fed to animals are a major contributor to land pollution
Explanation:
hope this helps :)
1)what organs make up the organ system , the circulatory system.
2)Bone tissue are shown on the left. what is the difference between tissue and specialized cells.
Answer:
1. Circulatory system is made up of your heart, arteries, veins and capillaries.
2. There isn't a photo attached. But Specialized cells perform specialized functions in multicellular organisms. Groups of specialized cells cooperate to form a tissue, such as a muscle. Different tissues are in turn grouped together to form larger functional units, called organs.
Explanation:
identify and explain three environmental impacts of current agricultural methods
Explanation:
It is profit making practice but it causes increased level of pathogens.
It has increased the level of chemicals in our land and water.
It has increased levels of greenhouse gases in air.
