Answer:
The incidence of mid-digital hair will not change because it offers no selective advantage or disadvantage.
Explanation:
The traits of an organism are determined by the genes of an organism.
In the given question, the trait is the hair growth on the middle digit or finger which is passed on to the generation but in some, it is expressed and in some, it is not.
This trait does not provide any benefit to the humans neither they are disadvantageous and thus is the neutral trait. Therefore, this trait will not change over time.
Thus, the selected option is correct.
Answer:
A.
Explanation:
DNA is replicated through reproduction to the offspring. Hope this helps :)
The answer is C an exothermic reaction because during a exothermic reaction light and heat are produced
Answer:
50%
Explanation:
Let the allele for red-green color blindness be represented by c.
Normal vision woman whose father is color-blind will be 
Color-blind male will be 
x
Progeny: 
(See the attached image)
<em>Out of the 2 male progeny, 1 is affected for color-blindness while the other is not affected. This gives a 50% probability that a son of the couple will be color-blind.</em>
Answer:
25%
Explanation:
This cross involves a single gene coding for spot color in beta fish. Green allele is C while the blue allele is c. This gene exhibits co-dominance, hence, an heterozygote beta fish (Cc) i.e. combination of both alleles, will have both phenotypes expressed to form a green and blue spotted beta fish.
If two green and blue spotted beta fishes (Cc) are crossed, each beta fish will produce gametes with C and c alleles. Using these gametes in a punnet square, four possible offsprings with the following genotypes will be produced: CC, Cc, Cc and cc.
C c
C CC Cc
c Cc cc
Hence, the percentage of offsprings expected to be green (CC genotype) is 1 out of 4possible offsprings i.e. 1/4 × 100 = 25%
