Male widow birds can have short, medium, or long tails. However, females are attracted to widow bird with longer tails. The problem is that longer tails make it harder for the male widow bird to fly and avoid predators. A group of explorers capture a group of widow birds and relocate them to another island. This island also has many resources but has many predators. Which graph below represents the expected allele frequencies of the widow birds tails after several decades? Explain your answer.

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. chinchilla x albino a) all chinchilla b) 1/2 chinchilla, 1/2 albino c) 3/4 chinchilla, 1/4 albino

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above