Question

A cell that is heterozygous for a nonsense mutation in a tumor suppressor gene would most likely:

A) Group of answer choices

B) grow but not divide

C) have a normal cell cycle

D) arrest and induce apoptosis

E) have a slightly increased cell cycle and increased cell growth

F) grow and divide uncontrollably

Which of the following correctly describes an event that occurs during transcription:

Group of answer choices

A) A DNA molecule is chemically modified to become a protein

B) tRNA molecules pair with codons in the DNA

C) amino acids are linked together

D) RNA polymerase recognizes and binds to the promoter DNA sequence

E) Translation is initiated at the start codon

Which of the following describes a mutation that has the potential to become a germline mutation?

Group of answer choices

A) a deletion of the promoter DNA sequence of a gene in a female gamete

B) All of the possible answers

C) a 2 base-pair DNA deletion that occurs from UV damage in a skin cell

D) a point mutation in the BRCA1 gene caused by an error in DNA replication in a breast epithelial cell

E) a transcription error causing a deletion of two-bases in an mRNA molecule within an egg cell

Answer 1

1) C [have a normal cell cycle]

2) D [RNA polymerase recognizes and binds to the promoter DNA sequence]

3) E [a transcription error causing a deletion of two-bases in an mRNA molecule within an egg cell]