Answer Happy

How are eukaryotes able to regulate gene expression in groups of
genes?
A. Activators and repressors coordinate to produce the
transcription factors
B. Operons bind to DNA sequences
C. Transcription factors work together
D> Activators and repressors act to increase gene
expression
2.
A scientist trying to isolate the green fluorescent protein
(GFP) gene from a sample of jellyfish DNA would primarily use which
technology to separate the GFP gene from the rest of the DNA?
A. Gel electrophoresis
B. Polymerase chain reaction
C. Restriction enzyme digestion
D. Gene cloning
3.
Which statement best describes a way in
which meiosis increases genetic variation, contributing to the
process of evolution?
A> Crossing over during prophase I results in DNA exchange
between homologous chromosomes.
B. Gametes assort independently and divide to form parent
cells that are not genetically identical.
C. Homologous chromosomes form unique sister chromatids when
they are replicated during prophase I.
D. Mutations are likely to occur during meiosis and cause
observable phenotypic differences in offspring.
4.
A recessive, sex-linked trait in mice is determined by a gene
located on the X chromosome. If a female mouse that exhibits this
trait is bred to a male mouse without the trait, how would the
offspring be affected?
A> All of the female offspring and none of the male offspring
would exhibit the trait.
B. All male offspring would exhibit the trait, and all female
offspring would be carriers.
C. Half of the female offspring and all of the male offspring
would exhibit the trait.
D. Half of the male offspring would exhibit the trait, and all
females would be carriers.