Answer:
C) A changed to G in the first position of the codon.
Explanation:
In the translation of DNA, triplets or codons of mRNA (a group of three nucleotides) are read according to a genetic code, to build proteins.
Proteins are composed of amino acids. In the translation process, each codon codes for an particular amino acid according to the genetic code as illustrated in the DNA codon table (attached here).
In this table we can see that if the first position of any of the codons coding for Threonine ( ACT, ACC, ACA, ACG) is changed for G, Adenine is going to be encoded instead of threonine.
The discarded theory of blending inheritance most closely resembles incomplete dominance.
<h3>
What is blending inheritance?</h3>
- An antiquated biological notion from the 19th century is the concept of blending inheritance.
- According to the hypothesis, children inherit any trait by averaging the values of their parents for that trait.
- According to the theory of blended inheritance, an offspring combines the values of both parents for a given attribute.
- As opposed to blended inheritance, particulate inheritance states that a child inherits individual units or genes from each parent.
- Offspring thus combines the traits of both parents.
- Incomplete dominance is the term used to describe phenotypic "blending" of two features, which implies that neither trait is truly dominant over the other.
- The manifestation of phenotypic traits that are intermediate between those of the parents, such as pink flower color from red and white parents.
- Inheritance was a now-discredited hypothesis that claimed children's genetic make-up was a pure admixture of their parents'.
Learn more about inheritance here:
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Explanation:
asexual only needs one parent and serial needs 2 parents
asexaul animals reproduce via mitosis and sexual animals via mieosis
An example of a missense mutation in a protein-encoding gene would most likely be a neutral mutation is option B: replacement of a polar amino acid with another polar amino acid at the protein's surface.
A frequent and well-known example of a missense mutation is the blood condition sickle-cell anemia. Missense mutations exist in the DNA at a single location in sickle-cell anemia patients. A different amino acid is required in this missense mutation, which also alters the overall structure of the protein. Similarly, replacement of a polar amino acid by another polar Ami no acid at the protein's surface is a missense mutation causing change in a single site.
A neutral mutation is one whose fixation is unrelated to natural selection. Therefore, the independence of a mutation's fixation from natural selection can be used to define the selective neutrality of a mutation.
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Complete question is:
Which example of a missense mutation in a protein-encoding gene would most likely be a neutral mutation?
a) Replacement of a polar amino acid with a nonpolar amino acid at the protein's outer surface
b) Replacement of a polar amino acid with another polar amino acid at the protein's surface
c) Replacement of a polar amino acid with another polar amino acid in the protein's interior
d) Replacement of a polar amino acid with a nonpolar amino acid in the protein's interior
