Bio 201 Final Review
Which of the following is most likely to occur when a tumor-suppressor gene is mutated?
- The tumor-suppressor gene and resulting protein may lose its function and ability to suppress cell proliferation.
Mutations can produce a polypeptide with increased function.
- TRUE
________can convert proto-oncogenes into oncogenes.
- Nonsense mutations
Most human embryos that are aneuploidy
- are spontaneously aborted in the first trimester.
Horses and donkeys are closely related species that can interbreed. However, the offspring produced are usually sterile and cannot reproduce. What term would best describe the offspring from this mating?
- alloploid
Mitotic cell division is never used by organisms as a means of reproduction.
- FALSE
Which of the following accurately gives the distribution of phenotypes produced from a cross of purple dwarf pea plants that are heterozygous for flower color and plant height?
- 63 purple dwarf; 28 purple tall; 27 white dwarf; 7 white tall
A man with pattern baldness and a woman who has no baldness have a son who develops pattern baldness. Their son has a daughter who also develops pattern baldness. They determine that her expression of this trait is not a symptom of a medical condition. If her mother does not have pattern baldness, the daughter's genotype is ________ and her mother's genotype is _____________.
- BB, Bb
If a pink snapdragon is self-fertilized, the offspring are red, pink, or white. What type of inheritance pattern does flower color exhibit in this example? * incomplete dominance
Which of the following organelle(s) has/have a genome separate from the genome in the cell nucleus?
- mitochondria and chloroplast
The inheritance pattern in which the mother provides gene products to the developing egg cells is called
- maternal effects.
If a testcross for two different traits produces more nonrecombinant than recombinant offspring, then the alleles for the two traits
- are on the same chromosome.
An
- The tumor-suppressor gene and resulting protein may lose its function and ability to suppress cell proliferation.
Mutations can produce a polypeptide with increased function.
- TRUE
________can convert proto-oncogenes into oncogenes.
- Nonsense mutations
Most human embryos that are aneuploidy
- are spontaneously aborted in the first trimester.
Horses and donkeys are closely related species that can interbreed. However, the offspring produced are usually sterile and cannot reproduce. What term would best describe the offspring from this mating?
- alloploid
Mitotic cell division is never used by organisms as a means of reproduction.
- FALSE
Which of the following accurately gives the distribution of phenotypes produced from a cross of purple dwarf pea plants that are heterozygous for flower color and plant height?
- 63 purple dwarf; 28 purple tall; 27 white dwarf; 7 white tall
A man with pattern baldness and a woman who has no baldness have a son who develops pattern baldness. Their son has a daughter who also develops pattern baldness. They determine that her expression of this trait is not a symptom of a medical condition. If her mother does not have pattern baldness, the daughter's genotype is ________ and her mother's genotype is _____________.
- BB, Bb
If a pink snapdragon is self-fertilized, the offspring are red, pink, or white. What type of inheritance pattern does flower color exhibit in this example? * incomplete dominance
Which of the following organelle(s) has/have a genome separate from the genome in the cell nucleus?
- mitochondria and chloroplast
The inheritance pattern in which the mother provides gene products to the developing egg cells is called
- maternal effects.
If a testcross for two different traits produces more nonrecombinant than recombinant offspring, then the alleles for the two traits
- are on the same chromosome.
An