Answer:
El Proyecto Genoma Humano (PGH) fue un proyecto internacional de investigación científica con el objetivo fundamental de determinar la secuencia de pares de bases químicas que componen el ADN e identificar y cartografiar todos los genes de un genoma humano promedio desde un punto de vista físico y funcional, incluyendo
Explanation:
the correct answer is b
Researchers note that a plant closes its stomata on a hot, dry, windy day. What statement describes the plant response to these
conditions?
A)
The stomatal closings and the environmental conditions are unrelated for this plant.
B)
The stomatal closings and the environmental conditions are unrelated for
this plant.
Water loss and water stress is highest on hot, dry, windy days, so the plant
closes stomata to conserve water.
Hot, dry, windy days are not conducive to pollen spread, so the plant closes
its stomata to prevent pollination.
Photosynthesis is decreased on hot, dry, windy days, so the plant closes its
stomata to prevent carbon dioxide diffusion.
a
D)
Answer:
It is B
Explanation:
i just took it
If a plant closes its stomata on a hot, dry, and windy day, the plant response to these conditions is water loss and water stress is highest on hot, dry, windy days. So, the plant closes its stomata to conserve water.
What do you mean by Stomata?Stomata are the tiny pores present on the surface of the leaves. A huge amount of gaseous exchange may take place in the leaves through these pores for the purpose of photosynthesis.
During photosynthesis, these stomatal pores take carbon dioxide and water is gradually lost, in order to prevent this water loss in hot and humid conditions, the plant closes its stomata.
Therefore, if a plant closes its stomata on a hot, dry, and windy day, the plant response to these conditions is water loss and water stress is highest on hot, dry, windy days. So, the plant closes its stomata to conserve water.
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Which of the following statements about eutrophication is TRUE?
a) Eutrophic bodies of water are characterized by clear water that is relatively free of algae. •
b) Climate change is expected to worsen eutrophication because many phytoplankton grow better in warm water
c) Eutrophication is typically driven by natural processes like rock weathering and nitrogen fixation
d) Eutrophication can harm fish and other aquatic species but does not cause health problems for humans
Answer:
c) eutrophication is typically driven by natural processes like rock weathering and nitrogen fixation.eutrophication happens when too much nitrogen enriches the soil, causing excess growth of plants and algea.
I hope this helps
When nitrogen from fertilizers seeps into soil, it frequently fosters weed growth rather than the development of native plants. The excess of nutrients caused by nitrogen washing into streams is known as eutrophication. Thus, option C is correct.
What best define about eutrophication?A surplus of nutrients in water, primarily nitrogen and phosphorus, causes a process called eutrophication. By consuming the nutrients, algae flourish, proliferate, and tint the water green.
Algae blooms can have an unpleasant odor, restrict sunlight, and in some circumstances even produce toxins.
The process of eutrophication occurs when a body of water receives an excessive amount of nutrients, which increases the growth of algae and macrophytes. It causes water bodies' dissolved oxygen levels to drop and their water quality to deteriorate.
Therefore, Eutrophication is typically driven by natural processes like rock weathering and nitrogen fixation.
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Which properties of protists make it difficult to group them in any other group?
Answer:
the first one
Explanation:
hahahaha
What is the metric unit for mass?
Meters
Kilograms
Pounds
Matter
Answer:
Kilograms is the metric unit for mass.
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Answer: the answer is kilo grams because people mesure the amount of mass with kilograms if you were to the amount of mass in a water bottle you would measure with kilo grams
hopefully this helps you out :) and please mark me brainiest.
discuss the reaction in tricarboxylic acid cycle
The tricarboxylic acid cycle also known as the Kreb's cycle consists of eight cycle wherein a molecule of acetylCoA is used to produce three NADH, one FADH2 and one GTP/ATP molecule.
What is the tricarboxylic acid cycle?The tricarboxylic acid cycle is a sequence of reactions in which acetylCoA molecules from the glycolytic pathway are used to produce the reducing equivalents NADH ad FADH2 which are used to produce ATP in the electron transport chain.
The tricarboxylic acid cycle also known as the Kreb's cycle consists of eight cycle wherein a molecule of acetylCoA is used to produce three NADH, one FADH2 and one GTP molecule.
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What is the correct order of amino acid if the sequence of bases on DNA were as follows: C-C-T-C-G-A-T-T-C-A-T-G
glycine, alanine, lysine, tyrosine
2)
alanine, proline, lysine, tyrosine
3)
valine, aspartate, glycine, proline
4)
aspartate, glycine, serine, valine
Answer:
it should be G-G-A-G-C-T-A-A-G-T-G-C
Explanation:
A=T
C=G
think of them as opposites. invert them and you'll have the answer (its easier if you write the answer right underneath)
The amino acid sequence should be G-G-A-G-C-T-A-A-G-T-G-C
G-G-A: glycine
G-C-T: alanine
A-A-G: lysine
T-G-C: tyrosine
What are amino acids?
Amino acids are molecules that combine to form proteins. Amino acids and proteins are the building blocks of life.
The nucleotide triplet that encodes an amino acid is called a codon. Each group of three nucleotides encodes one amino acid. There are 64 combinations of 4 nucleotides taken three at a time and only 20 amino acids, the code is degenerate (more than one codon per amino acid, in most cases).
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Which inherited characteristic will this toucan pass on to its offspring?
I am really bad at bio and brainly has helped me a lot!!!!!
Answer:
B. Black fur
Explanation:
The last two options are normal to a bird.
Answer:
A colorful beak
Explanation:
got it right on my quiz
hope this helped now I peace out ✌
Antimicrobial susceptibility testing was performed to screen a novel compound. The MIC was found to be 10ng/mL. Use the following data to determine the percent recovery for each treatment group. What is the MBC and would you describe the antimicrobial tested as static or cidal?
Novel compound concentration CFU/mL Present Recovery
0ng mL 3.4 x 10^5
10ng/mL 2.4 x 10^5
20ng/mL 6.4 x 10^4
40ng/mL 1.4 x 10^4
80n mL 4.4 x 10^3
160n mL 0
Answer:
a) Percent recovery
100%, 70.58%, 4.11%, 1.29% , 0%
b) MBC = 160 ng mL
c) Static
Explanation:
A) Calculate the percent recovery for each group
i) for 0ng mL
( 3.4*10^5 / 3.4*10^5 ) * 100 = 100%
ii) for 10ng mL
( (2.4 * 10^5) / (3.4 * 10^5) ) * 100 = 70.58%
iii) for 20ng mL
( ( 6.4 * 10^5 ) / ( 3.4 * 10^5 ) ) * 100 = Nil
iv) for 40 ng mL
( ( 1.4 * 10^4 ) / ( 3.4 * 10^5 ) ) * 100 = 4.11 %
v) for 80 ng mL
( ( 4.4 * 10^3 ) / ( 3.4 * 10^5 ) ) * 100 = 1.29%
vi) for 160 n mL
percentage recovery = 0%
B) what is the MBC
The value of MBC = 160 n mL because at this concentration CFU/mL = 0
c) determine if the antimicrobial tested is static or cidal
condition : If, the ratio of MBC : MIC is ≤4 then novel compound is Cidal
MBC / MIC = 160ng / 10ng = 16 : 1
hence we can conclude that the antimicrobial tested is STATIC
The locus B on the X chromosome of a malaria-carrying mosquito shows a 49% recombination rate with respect to the locus M. Since a recombination rate of 50% is essentially indistinguishable from independent assortment, you might be tempted to look for a locus that falls between B and M. Before you decide to do all that work, you run a chi square test to determine the P value of your experiment.
Required:
What range of P values would tell you that you should accept the conclusion that locus B and locus M are, indeed, 49mu apart and that another locus is not necessary?
Answer:
The correct answer is - P = 0.45
Explanation:
The Chi-square test is a test that determines the assorted genes independently. Here p-values used to make conclusions in significance testing.
If the p value is less than the significance level we expect or choose, then this null hypothesis is rejected in favor of the alternative hypothesis. It p value is greater than or equal to the significance level, then we fail to reject the null hypothesis.
So in this case, as the recombination rate is 49% so the p value which satisfies the conclusion will be around 0.45 and values near to it.
Question Mode Fill in the Blank Question Fill in the blank question. In cells that contain a nucleus, the DNA is divided into multiple linear chromosomes which are organized into a complex structure called
Answer:
The correct answer is - chromatin.
Explanation:
Chromatin is a part within a chromosome consisting of DNA and protein. The DNA carries the cell's genetic instructions and these are complex structures present in multiple linear chromosomes.
The major proteins in chromatin are histones, which help package the DNA in a compact form that fits in the cell nucleus.
Exchange of gases in plants occur through:
(A): Stomata.
(B):Lenticels.
(C):Root surface.
(D):Choloroplast.
(1)A,B and D
(2)A,B,CandD
(3)AandC
(4)A,BandC
Answer:
(A): through the stomata
Muscle weakness is associated with Vit A/ Vit E/ Vit K/ Protein deficiency
Answer:
Low vitamin E levels may result in Muscle weakness: for the central nervous system, vitamin E is vital. It is one of the major antioxidants in the body and a shortage causes oxidative stress that can lead to weakening in muscles.
Explanation:
The body needs to work with vitamin E and become a necessary vitamin. It is fat-soluble, thus it has to be effectively absorbed in fat from the food. Before being released to the bloodstream for usage, vitamin E is mostly kept in the liver.
The deficiency is unusual and usually caused by an understatement. There are also modest levels of preterm newborns.
Eight kinds of vitamins exist. A blood test allows a physician to know how much a person has of an alpha-tocopherol form. Use this information to establish if the total vitamin E level of a person is present.
A standard level is typically between 5.5 and 17 milligrams (mg/L) per litre. For premature infants and youngsters under 17 years, the typical range may be different. The Normal scope may also be somewhat different amongst laboratories.
If an adult has less than 4 mg/L of vitamin E in his or her blood, supplementation is usually necessary.
Celluose is a type of
1 lipid
2 carbohydrate
3 protein
4 grass
Answer:
cellulose is a type of carbohydrate. hope it help you.
Answer:
2.Carbohydrate
Explanation:
Thank you✌️❣️✌️
Explain how a bottleneck event can enrich recessive traits in the genetics of a population.
Answer
A bottleneck event severely reduces the fraction of a species able to pass on their genes to offspring. Any once rare recessive traits present in the surviving breeding population are passed to a larger fraction of the total population of offspring, thereby enriching those recessive traits in the total gene pool .
Bottleneck events can limit variation if the dominant allele population gets wiped out for any reason and the recessive allele can appear to be in the majority however this does not shows the actual makeup of the population.
What is bottle neck effect?The bottleneck effect is defined as a reduction and subsequent increase in a population's size affects the distribution of genetic variation among its individuals.
Examples of bottle neck effect is when the northern elephant seals have reduced genetic variation likely because of a population bottleneck humans imposed on them in the 1890s. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century.
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Lainey is looking for a new apartment and her realtor keeps calling her with new listings. The calls only take a few minutes, but a few minutes here and there are really starting to add up. She's having trouble concentrating on her work. What should Lainey do? a) Tell her realtor she can only receive text messages O b) Limit the time spent on each call O c) Turn off her phone until she is on a break O di Call her realtor back when customers won't see her on the phone
Answer:
c) Turn off her phone until she is on a break
Explanation:
If she does option "a" then her phone will still keep ringing with text message alerts. Option " b" will still be consuming her work time and option "d" can't be because it'll be too late by then so only option c makes sense.
Analyze the graph with a partner. How many mass extinctions did you identify? How did you determine when they occurred?
Answer:
4 mass extinctions
Explanation:
as there are huge drops in the graphs
at 440,390,260,50
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When is a hypothesis considered scientific?
A hypothesis is considered scientific if it has something that can be supported or refuted through carefully crafted experimentation or observation
White Leaf Disease is a devastating disease that
affects sugar cane crops in Thailand and has become a
major issue for farmers. The disease starts with a white
line forming in the center of the sugar cane's leaves,
which can change in size and shape as it develops.The sugar cane's new leaves will become increasingly whiter, often having stunted growth, and resulting in the sugar cane being less productive than the non-
infected plants, Scientists are trying to determine
what organelle must be damaged to produce the
observed results,
White leaf disease is caused by phytoplasma. The disease infects the leaves and create white spots in them.
The farmers in Thailand are facing this issue with sugarcane crops. The organisms infect phloem tissues in sugar cane and cause the leaves to turn white.
The size and shape can change as sometimes there are fine white lines created while sometime there are white spots.
Scientists are trying to deal with such disease and an spray of liquid copper has been found beneficial to treat this disease. The white spot fungus stops to spread with the spray.
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is the citric acid cycle the same thing as fermentation
Answer:basically
Explanation:
the different between microspores and pollen grain
The key difference between microspore and pollen grain is that microspore is the small spore that develops into the male gametophyte in plants while pollen grain is the small grain that contains the male gametophyte.
Explain the application of the principle of genetics in agriculture and medicine
applications of biotechnology in the field of agriculture and medicine are:
Antibiotics are created from the plants for human and animal use. An antibiotic protein in stock feed is more cost-effective than traditional antibiotic production.
It helps in the production of genetically modified crops that produce crops with desired characteristics.
Gene therapy is used for the diagnoses of diseases like cancer and Parkinson’s disease.
Genetic testing is another technique that is used to diagnose any genetic diseases in theparents.
DNA fingerprinting is used in the identification of criminals and solving paternity disputes.
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Answer:
Application # 2. Agriculture:
The contribution of genetics in the field of agriculture is remarkable in two ways, viz
(i) In the improvement of crop plants and
(ii) In the improvement of domestic animals
a. Which of the following animals does not have constant body temperature? 1) squirrel 10) crocodile iil) bird iv) human being b.
answer: crocodile
Birds and mammals do have constant temperature s ....squiral and human being are mammals.
my answer is crocodile
Explanation:
hope this helps
What is gylcosylation
Glycosylation is the reaction in which a carbohydrate, i.e. a glycosyl donor, is attached to a hydroxyl or other functional group of another molecule in order to form a glycoconjugate. In biology, glycosylation usually refers to an enzyme-catalysed reaction, whereas glycation may refer to a non-enzymatic reaction.
What was the name of your fish sample, according to the restaurant menu?
Types of Sashimi (slice of raw fish) listed on the restaurant menu:
1. Escolar – Super white tuna
2. Maguro – Big eye tuna
3. Hamachi – Yellowtail
4. Tai – Red snapper
5. Nama Sake – Salmon
6. Saba – Mackerel Fish
normally, yellowtail and salmon is served as sashimi but im not sure I don't really get the question lol
If the inner membrane of mitochondria was not folded, how would it affect the organism?
Answer:
There wouldn't be enough surface area for the electron transport chain.
6 points about carnivorous
Answer:
a carnivorous is a plaant and animal that eats the flesh of animal.
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The diagram below shows four layers of Earth.
Which of these layers of Earth contains mainly solid iron? (100 points)
Layer A
Layer B
Layer C
Layer D
Answer:
Layer A
Explanation:
The innermost layer that is present at the center of the earth is mainly made up of solid iron. So option A is correct.
The innermost layer of the Earth is the innermost core. The innermost core is a solid metal ball composed mostly of iron. Inside the innermost core, temperatures are extremely high, with an estimated inner core temperature of 7200–8 500ºF (4000–4 700ºC). The innermost core of the Earth is not molten like the outermost core.
The solid inner core lies 3,200 kilometers below the Earth’s crust and is separated from the semi-solid mantle by a liquid outer core.
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Unlike skeletal muscle, the muscle cells of the heart (called "cardiomyocytes") metabolize very little glucose, relying almost exclusively on metabolism of fatty acids for their energy. Which of the following statements are likely to be true of cardiomyocytes, but NOT skeletal myocytes? (select two answers)
a. low levels of glycogen storage, even when blood glucose is high
b. high levels of glycogen storage, even when blood glucose is low
c. low lactate production, even at high activity
d. high lactate production, even at low activity
e. many mitochondria compared to other cells
f. few mitochondria compared to other cells
Answer: A. low levels of glycogen storage, even when blood glucose is high.
C. low lactate production, even at high activity.
Explanation:
Cardiomyocytes are also known as the myocardiocytes. They are the cells which makes up make up the muscle if the heart. They're responsible for the generation of the contractile force in the heart which helps in the pumping if blood.
From the options given, the statements that are likely to be true of cardiomyocytes, but not of skeletal myocytes include:
• low levels of glycogen storage, even when blood glucose is high.
• low lactate production, even at high activity.
Answer:
The answer is A and C
Explanation:
Since cardiomyocytes are dependent on fatty acids, they rely on oxidative phosphorylation to generate energy, and consume very little glucose. Due to this, they have very low need for fermentation of pyruvate. In fact, they can absorb lactate generated by skeletal myocytes and erythrocytes and oxidize it for additional energy. Another consequence of this metabolism is that cardiomyocytes store little or no glucose as glycogen.
Skeletal myocytes and cardiomyocytes both have high energy needs and thus have more mitochondria than other cells. Cardiomyocytes have an even greater density of mitochondria than skeletal myocytes because they depend almost entirely on oxidative phosphorylation for their energy needs. This dependence on oxidative phosphorylation also explains the extraordinary sensitivity of cardiac muscle to hypoxic (low-oxygen) events. Without oxygen, cardiomyocytes rapidly run out of energy and can quickly die.
BLEACH ANSWER THIS QUESTION!!!
ABOUT 70% of total Global carbon is found in
1) Ocean
2) Forest
3) Grasslands
4) Agroecosystems
Answer:
1) Ocean
Explanation:
HOPE IT HELPS YOUOPEN ENDED QUESTION
Why should you NOT drink seawater even
in extreme survival situations? Please
use at least 3 vocabulary words from the
video.
Answer:
sea water has lot of salt which is dangerous to human health
Explanation:
i don't seem to see any video.i which I could answer your questions
