Daniel Nathans and Hamilton Smith who discover the Impermanence of Sexual Phenotypes as to the absolute statement.
Phenotypic sex is refer to an individual's sex as intent by their internal genitalia, expression of secondary sex attribute, and behavior.
Answer:
The correct option is <em>B. 25 %</em>
Explanation:
A heterozygous type can be described as the type in which both the alleles of a gene are different. If both the alleles of a gene are similar in an organism, then the person is said to be homozygous for the trait.
In the above question, two heterozygous parents are to be cross- bred to check the probability of them producing homozygous alleles (AA).
A punnet square made will show the following results:
A O
A AA AO
B BA BO
Hence, there will be 25% chance that the offspring produced could be homozygous AA.
Answer:
You use the control group against an experimental group to see if there is a change when you add a variable. Th control group is the group without the variable you are testing.
C) To gather info about the natural world, to explain natural phenomena, and allow reasonable predictions of future events
One way would be to administer an IQ and then compare the results to other age group averages to determine a relative mental age.
