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TEA [102]
3 years ago
13

A section of DNA encodes a gene for an enzyme involved in cellular metabolism. If a mutation event occurs that results in the de

letion of one base near the beginning of this sequence, which of the following is the most likely outcome?
A. The loss of one base may or may not seriously affect the protein synthesized, depending on which base is lost.
B. The protein synthesized may contain only one erroneous amino acid since the loss of one base will cause one codon to be misread during transcription.
C. The protein synthesized will contain many erroneous amino acids since the loss of one base will shift the reading of the encoded base sequence.
D. The loss of one base will not seriously affect the protein synthesized from the DNA sequence.

Biology
1 answer:
Lady_Fox [76]3 years ago
4 0

Answer:

The correct answer would be C. The protein synthesized will contain many erroneous amino acids since the loss of one base will shift the reading of the encoded base sequence.

Deletion mutation that does not occur in the multiple of three bases can results in frame-shift mutation.

It changes the reading frame of nucleotide in DNA. Thus, the reading frame of codons in mRNA would also change.

Consequently, the sequence of amino acids in a polypeptide chain would change or alter. Thus, a protein would contain many erroneous amino acids.

An example of the same is shown below in the image.

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The correct option would be B. results in the formation of a compound

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8 0
3 years ago
What biological macromolecule is made up of monomers like the one shown below​
aniked [119]

Answer:

C. Protein

Explanation:

Proteins contain C, H, O, and N.

Most notably, they contain an R group (aka a side chain), which is different for each for amino acid. The R group is symbolized by the letter R in the image.

6 0
3 years ago
In pea plants, smooth (S) peas are dominant over wrinkled (s) peas in the single gene controlling pea texture. A plant with smoo
OlgaM077 [116]

Answer:

Ss and ss

Explanation:

<em>Since the smooth trait (S) is dominant over the wrinkle trait (s), the genotype of the wrinkled pea parent is definitely </em><em>ss</em><em>.</em>

<em>Also, some of the progeny had wrinkled pea texture (ss). Each of the 2 wrinkled alleles must have been donated by each of the parent. It thus means that the smooth pea parent is heterozygous for the trait (</em><em>Ss</em><em>).</em>

Now, let us look at a cross between the two parents;

  Ss   x   ss

Progeny: Ss, Ss, ss, ss.

Phenotypically, 50% of the progeny are smooth peas while 50% are wrinkled.

Looking at the population of each of the phenotype resulting from the cross. 252:247 is approximately a 50:50 ratio.

Hence, the genotypes of the two parents are Ss and ss.

3 0
3 years ago
What is adaptive radiation?
LUCKY_DIMON [66]

Answer:

C. The evolution of many species from a single ancestor over a long period of time

3 0
2 years ago
Which is the largest level of classification of these options?
Lina20 [59]

Answer:

Phylum is the largest.

Explanation:

It goes down likes this:

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

3 0
3 years ago
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