BIOLOGY HIGH SCHOOL

A researcher creates random copolymers of three nucleotides by mixing polynucleotide phosphorylase with guanine and adenine nucleotides in a ratio of 5 guanine nucleotides to 1 adenine. Which of the following three nucleotide copolymers would most likely be most abundant? A. GGG D. GAA E. AAA B. GAG C. AGA

Answers

Answer 1
Answer: The answer is A. GGG.

To calculate this, a multiplication rule is used. The multiplication rule calculates the probability that both of two events will occur. In this method, the possibilities of each event are multiplied.

If a ratio is 5 guanine to 1 adenine, this means that the possibility of adenine to be created is (1)/(6), and the possibility of guanine to be created is (5)/(6).

Now, we will use the multiplication rule to calculate the possibility of creation each of these 5 copolymers:
GGG - (5)/(6) × (5)/(6) × (5)/(6) = 0.58
GAA - (5)/(6)  × (1)/(6) × (1)/(6) = 0.02
AAA - (1)/(6)  × (1)/(6) × (1)/(6) = 0.005
GAG - (5)/(6)  × (1)/(6) × (5)/(6) = 0.12
AGA - (1)/(6)  × (5)/(6) × (1)/(6) = 0.02

According to this, the greatest possibility to be created has copolymer GGG.

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Which of the following describes the role that enzymes play in the process of metabolism

Answers

Answer;

Enzymes increase the rate of the chemical reactions carried out during metabolism.

Explanation;

-Some enzymes help to break down large nutrient molecules, such as proteins, fats, and carbohydrates, into smaller molecules. This process occurs during the digestion of foodstuffs in the stomach and intestines of animals.

-Other enzymes guide the smaller, broken-down molecules through the intestinal wall into the bloodstream. Still other enzymes promote the formation of large, complex molecules from the small, simple ones to produce cellular constituents.

-Enzymes are also responsible for numerous other functions, which include the storage and release of energy, the course of reproduction, the processes of respiration, and vision.

Enzymes are catalysts of living beings, basically they hurry along chemical reactions and ensure that they happen, hope that helps :)

How are carbohydrate polymers formed?

Answers

Cells build carbohydrate polymers by using energy to form glycosidic linkages, the bonds between monosaccharides. A dehydration synthesis reaction forms a bond between carbon atoms in two monosaccharides, sandwiching an oxygen atom between them and releasing a water molecule. Hope this helps!

Answer:

by hydrolysis

Explanation:

Describe the water conditions that would cause the most competition between three species

Answers

Answer:

Species compete for water when this resource is limited, this limit occurs when there is a shortage of rain, or very high solar radiation. Under these conditions the bodies of water are dried

An example of this competition is when there are 3 species of plants that with their roots suck the water from the ground freatic level, those that have longer and more effective roots can survive.
Drought would be one. Another would be if the watering hole was between three species territory in the middle in which they would fight. Another way would be if the more dominant species pushed its way into another persons territorty.

Which is a purpose for which a pedigree chart might be prepared?

Answers

Considering the following choices;

A. to determine the gender of a fetus

B. to determine if a fetus has the correct number of chromosomes

C. to identify chromosomal defects

D. to identify the pattern of inheritance of a particular trait

Answer;

D. to identify the pattern of inheritance of a particular trait

Explanation;

The pedigree chart shows the occurrence of the phenotypes (observable characteristic) of a certain gene or genes between ancestors and predecessor.

It is created in order to find patterns of inheritance and see what the most important traits that get inherited are.
The correct answer is to determine the pattern of inheritance of a particular trait. A pedigree chart is a diagram in which shows the pattern of inheritance of a particular trait from its ancestors to the next generation.

Which of the following examples of an ecological study involves the ecosystem level of organization?A. The effects of human activities on biogeochemical cycling
B. The effects of a disease on population size
C. The effects of an invasive plant species on bird nesting sites
D. The effects of competition on survival

Answers

the closest answer to being correct is A, because ecosystem involves biotic and abiotic. and since humans are biotic and the cycle is abiotic. it is on the ecosystem level! :D

Mendel believed that during the formation of gametes, the pair of genes controlling a trait separate. He called this the principle of _____.a. dominance
b. segregation
c. separation
d. recession

Answers

B. Segregation. 
I have the same question and answered it and this is what it told me. I think it should be right. 

Answer:

Mendel believed that during the formation of gametes, the pair of genes controlling a trait separately. He called this the principle of _____.

a. dominance

b. segregation

c. separation

d. recession
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