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mylen [45]
3 years ago
12

please write a summary on base pairing. The main facts doesnt have to be long it can literally be one sentence about base pairin

g that gives that gives a fact about it. please and thanks...WILL UPVOTE
Biology
1 answer:
hammer [34]3 years ago
7 0
Can you be more specific with the question. Are you talking about DNA coding with complementary bases?
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The proportions of the bases are consistent within a species; however they do vary between species. Using the base-pair rules, c
Snezhnost [94]

Answer:

The correct answer would be:

                  A         G          C         T

Human:   31          19          19       31

Cow:         28         22      22         28

Salmon:     29       21       21         29

Wheat        27      23        23        27

Yeast         31         19       19         31

Explanation:

According to the rule of Chargaff which states or explains the amount of the A, T, G, and C bases in the DNA molecule. It says that the DNA of any organism should have a pyrimidine and purine ratio of 1:1. This means the amount of A would be equal to T and the amount G should be equal to the amount of C.

It also says that the amount of a and G would be equal to the amount of C and T. So on the base of this we can find the missing value in the table:

                    A         G          C         T

Human:   31          19          19       31   (A= T and G=C)

Cow:         28         22      22         28  (A= T and G=C)

Salmon:     29       21       21         29   (A= T and G=C)

Wheat        27      23        23        27 (100 - A+T = G+C)

Yeast         31         19       19         31 (A= T and G=C)

5 0
3 years ago
Attached earlobes are a recessive trait. If earlobes are indicated with the letter E, what would the proper genotype be for a pe
likoan [24]

Answer:I think C.ee because of this↓

Explanation:The genotype for some with attached earlobes would be ee because unattached earlobes are dominant(EE or Ee) which means attached would be recessive(ee).

4 0
2 years ago
The prefix mono- means “one” and the prefix poly- means “many”. How are these meanings related to the terms monomer and polymer
Dmitriy789 [7]

When a molecule is made up of one sugar unit, its called a monomer.

Eg. Glucose, galactose, fructose

When a molecule is made of more than one sugar units, its called a polymer.

Eg. Cellulose, glycogen

Polymers are usually macro molecules.

8 0
3 years ago
In a certain mutant strain of bacteria, the enzyme leucyl-tRNA synthetase mistakenly attaches isoleucine to leucyl-tRNA 10% of t
Effectus [21]

Answer:

The correct answer is "proteins in which isoleucine is inserted at some positions normally occupied by leucine".

Explanation:

The missing options of this question are:

A. proteins in which leucine is inserted at some positions normally occupied by isoleucine.

B. proteins in which isoleucine is inserted at some positions normally occupied by leucine.

C. no abnormal proteins, because the ribosomal translation machinery will recognize the inappropriately activated tRNAs and exclude them from the translation process.

D. no proteins, because the inappropriately activated tRNAs will block translation

The correct answer is option B. "proteins in which isoleucine is inserted at some positions normally occupied by leucine".

In normal conditions, the enzyme leucyl-tRNA synthetase attaches one leucine amino acid to leucyl-tRNA as part of synthesis of proteins that have one or more leucine residues in their sequences. Since the enzyme of this mutant strain of bacteria mistakenly attaches isoleucine to leucyl-tRNA 10% of the time, approximately 10% of all the proteins that normally have leucine residues will going to have isoleucine. Therefore, These bacteria will synthesize proteins in which isoleucine is inserted at some positions normally occupied by leucine.

3 0
3 years ago
The 7 levels of biological organization are?
Taya2010 [7]

Smallest to largest- molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.

Not sure which 7 you're looking for

4 0
3 years ago
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