The fourth one that looks like an M. This is because it describes changes in population genetics in which extreme values for a trait are favored over intermediate values. In this case, the variance of the trait increases and the population is divided into two distinct groups.
Answer:
bees originally evolved from hunting wasps which acquired a taste for nectar and decided to become vegetarians. Fossil evidence is sparse but bees probably appeared on the planet about the same time as flowering plants in the Cretaceous period, 146 to 74 million years ago.
Explanation:
Answer:
The correct answer would be B-80/200.
Allele frequency is defined as relative occurrence of the allele at a particular locus in a given population.
We have a sample population of 100 chickens where
Frequency of homozygous dominant trait (CC) = 45
Frequency of homozygous recessive trait (cc) = 25
Frequency of heterozygous dominant trait (Cc) = 30
Total alleles would be = 100 x 2 = 200
Total number of observed copies of C (dominant allele) = (45 x 2) + 30 = 120
Similarly, number of observed copies of c (recessive allele) = (25 x 2) + 30 = 80.
Hence, the frequency of allele C = 120/200 = 0.6
Frequency of allele c = 80/200 = 0.4