There is no answer that is right except for C. Natural Selection.
Genetic Recombination doesn't change gene frequency;nor does migration. (Unless it's local)
Mutation could be the answer, but since mutations are too rare to really power Evolution, the only logical answer is Natural Selection.
Answer:
9:3:3:1
Explanation:
This type of crossing that involves two characters is referred to as dihybrid crossing. Generally, when there is a dihybrid crossing for heterozygous genes for both parents, the phenotypic ratio is usually 9:3:3:1 as shown in the figure in the attached document below.
Assuming the colour is White (P) and Black (p) and the
Height is Tall (T) and short (t)
The possible phenotypes will be in the ration
9 - White and Tall
3 - White and short
3 - Black and Tall
1 - Black and short
It should be noted that phenotypic ratio (phenotype) describes the outward appearance (what can be see physically) and not the genetic make-up. Thus, where there is a dominant character like P or T, the recessive characters are not considered to have been expressed.
Answer:
Ribonucleic Acid or Ribo Nucleic Acid
Explanation:
In a dehydration synthesis reaction, water is always formed as a by-product of the reaction.
<h3>What is a dehydration synthesis reaction?</h3>
A dehydration reaction in chemistry is a chemical process in which the reacting molecule or ion loses water. The opposite of a hydration reaction, dehydration reactions are frequent processes.
Dehydration synthesis is a chemical reaction that joins two smaller molecules by eliminating atoms from each of them. Organic compounds can be further divided into aliphatic and aromatic compounds based on the structure of hydrocarbons. The generation of new compounds with changes in atom bonding can occur in a variety of chemical processes involving organic molecules.
To learn more about dehydration synthesis reaction with the help of given link:
brainly.com/question/3156803
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