What is the effect of a nonsense mutation in a gene? what is the effect of a nonsense mutation in a gene? it introduces a premature stop codon into the mrna. it has no effect on the amino acid sequence of the encoded protein. it changes an amino acid in the encoded protein. it alters the reading frame of the mrna. it prevents introns from being excised?

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.