PLEASE HELP The skeleton of a shark is made of bone.
a. true
b. false
17
A cold-blooded animal is able to maintain a constant body
temperature despite the temperature of its surroundings.
a. true
b. false
18
Many frogs have bumps behind their eyes that contain a poisonous
liquid.
a. true
b. false
19
Jawless fish are the most primitive of all the fish.
a. true
b. false
20
During the winter, frogs and toads go into a deep sleep called
molting.
a. true
b. false

Suppose a point mutation, such as a change from an adenine to a guanine, occurs in the genome of a human sperm cell. the mutation could occur in any region of a gene. the effect of the mutation on the phenotype of the offspring will be determined by where the mutation occurs and its effect on the final gene product. in which of the following scenarios could the mutation alter the phenotype of the offspring? select all of the scenarios that apply the mutation occurs in the promoter and affects the rate of gene transcription. the mutation results in a new, dominant allele the mutation occurs in a portion of an intron not responsible for exon splicing the mutation occurs in a gene that controls development and alters differentiation of a cell type during development. the mutation occurs in a codon and alters the function of the final protein e mutation occurs in a codon, and the amino acid sequence of the final protein is unchanged.