Auburn Genetics 3000 - Seibenhener Exam 1 Review
acquired characteristics Correct Answers an organism will pass
down characteristics it has obtained throughout its life to its
offspring
After replication, chromosomes consist of how many molecules
of DNA (assume one chromatid is equal to one molecule of
DNA)? Correct Answers 2 chromosomes
DNA helicase inhibitors are well studied as potential drug
targets. What would you expect to see if DNA helicase activity
is inhibited? Correct Answers Helicase catalyzed ATP
hydrolysis and DNA strands separate, so the helix cannot be
unwound and strands will not separate
DNA replication is defined as _____________ because the
newly replicated DNA consists of a parental strand (from the
original DNA) and a newly synthesized daughter strand Correct
Answers semi conservative
During DNA replication, nascent DNA strands are synthesized
in only one direction. Nucleotides are added ONLY to which
end of the growing nascent strand? Correct Answers 3' end
Epigenesis Correct Answers an organism is developed from
information housed in its reproductive cells and passed along to
its offspring
Humans have a gene, T, that is involved in muscle formation of
the tongue, Individuals homozygous for one allele can roll their
, tongues, while individuals homozygous for the other allele
cannot. If both parents can roll their tongues, but their child
cannot, what can be said about the mode of inheritance? Correct
Answers tongue rolling is dominant, both parents were
heterozygous (Tt)
In peas, axial (A) flower position is dominant to terminal (a), tall
(L) is dominant over short (l), and yellow (Y) is dominant to
green (y). If a plant that is heterozygous for all three traits is
allowed to self-fertilize, how many of the offspring would show
the dominant phenotype for all three traits Correct Answers
27/64
In peas, axial (A) flower position is dominant to terminal (a), tall
(L) is dominant over short (l). If a plant that is heterozygous for
both traits is allowed to self fertilize, how many of the offspring
would also be heterozygous for both traits. Correct Answers
1/4
In peas, the trait from smooth allele is dominant over the trait
from the wrinkled allele. A plant with round peas was crossed
with a plant with wrinkled peas and the resulting generation is
all around smooth peas. what are the most likely genotypes of
the parents in this cross Correct Answers RR x rr
In peas, the trait from the yellow allele is dominant over the trait
from the green allele. A plant with yellow peas was crossed with
a plant with green peas. The resulting plants were 50% yellow
and 50% green. what are the most likely genotypes of the
parents in this cross? Correct Answers Yy x yy
acquired characteristics Correct Answers an organism will pass
down characteristics it has obtained throughout its life to its
offspring
After replication, chromosomes consist of how many molecules
of DNA (assume one chromatid is equal to one molecule of
DNA)? Correct Answers 2 chromosomes
DNA helicase inhibitors are well studied as potential drug
targets. What would you expect to see if DNA helicase activity
is inhibited? Correct Answers Helicase catalyzed ATP
hydrolysis and DNA strands separate, so the helix cannot be
unwound and strands will not separate
DNA replication is defined as _____________ because the
newly replicated DNA consists of a parental strand (from the
original DNA) and a newly synthesized daughter strand Correct
Answers semi conservative
During DNA replication, nascent DNA strands are synthesized
in only one direction. Nucleotides are added ONLY to which
end of the growing nascent strand? Correct Answers 3' end
Epigenesis Correct Answers an organism is developed from
information housed in its reproductive cells and passed along to
its offspring
Humans have a gene, T, that is involved in muscle formation of
the tongue, Individuals homozygous for one allele can roll their
, tongues, while individuals homozygous for the other allele
cannot. If both parents can roll their tongues, but their child
cannot, what can be said about the mode of inheritance? Correct
Answers tongue rolling is dominant, both parents were
heterozygous (Tt)
In peas, axial (A) flower position is dominant to terminal (a), tall
(L) is dominant over short (l), and yellow (Y) is dominant to
green (y). If a plant that is heterozygous for all three traits is
allowed to self-fertilize, how many of the offspring would show
the dominant phenotype for all three traits Correct Answers
27/64
In peas, axial (A) flower position is dominant to terminal (a), tall
(L) is dominant over short (l). If a plant that is heterozygous for
both traits is allowed to self fertilize, how many of the offspring
would also be heterozygous for both traits. Correct Answers
1/4
In peas, the trait from smooth allele is dominant over the trait
from the wrinkled allele. A plant with round peas was crossed
with a plant with wrinkled peas and the resulting generation is
all around smooth peas. what are the most likely genotypes of
the parents in this cross Correct Answers RR x rr
In peas, the trait from the yellow allele is dominant over the trait
from the green allele. A plant with yellow peas was crossed with
a plant with green peas. The resulting plants were 50% yellow
and 50% green. what are the most likely genotypes of the
parents in this cross? Correct Answers Yy x yy
