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Transcript
Question 1
1. The female gamete is the
spore.
2.
sperm.
egg.
zygote.
Question 2
1. Arrange the following events of meiosis in sequence: (1) Crossing over, (2) second
division, (3)synapsis.
1 >2.2 > 3
3>1>2
2>3>1
2>1>3
1>3>2
Question 3
1. Which term best explains the failure of synapsed homologs to completely separate and
migrate to separate cells?
nondisjunction
2.
inversion
duplication
synapsis
Question 4
1. Cell geneticists have identified what type(s) of chromosome rearrangement?
deletions
duplications and translocations
inversions
Question 5
1. A species or biological system used to study a specific biological phenomenon to gain
understanding that will be applied to other species is called a ________________.
model
2. system
prototype system
test system
control system
Question 6
1. If a liver cell of a typical organism has 32 chromosomes, how many chromosomes will be
in a gamete of that same organism?
8 2.
16
32
64
Question 7
1. Reduction division occurs during ____________.
meiosis
2.
I
meiosis II
interphase
fertilization
Question 8
1. Aneuploidies are deleterious for the individual because of what phenomenon?
nondisjunction
2.
gene dosage
meiotic errors
X inactivation
Question 9
1. What event occurs between meiosis I and meiosis II?
genetic
2. recombination
interphase
interkinesis
crossing over
Question 10
1. A cell that has only one set of chromosomes and thus, one set of genes is said to be what?
diploid
2.
haploid
monoploid
Question 11
1. Which feature of meiosis is not found in mitosis?
synapsis
2.
cytokinesis
chromatid separation
spindle formation
Question 12
1. The number and appearance of an individual s chromosomes is called the ____________.
karyotype
2.
prototype
archetype
diplotype
Question 13
1. A cell that is said to be haploid has
two
2. sets of chromosomes.
one set of chromosomes.
an abnormal set of chromosomes.
Question 14
1. A life-cycle type in which the diploid and haploid stages alternate is
syngamy
2.
fertilization.
alternation of generations.
asexual production.
sexual cycling.
Question 15
1. A human zygote contains how many chromosomes?
232.
23 pairs
46 pairs
92
Question 16
1. Which of the following is NOT true about cell division?
Somatic
2.
cell forms the body.
Many somatic cells are diploid.
Mitosis produces gametes.
Gametes are haploid.
Question 17
1. In prophase I of meiosis, what does a tetrad consists of?
four different chromosomes
a pair of homologous chromosomes
four chromatids
Question 18
1. Producing offspring from a single parent is called
asexual
2.
reproduction.
sexual reproduction.
a life cycle.
fertilization.
Question 19
1. Which of the following is not a main category of sexual life cycle in multicellular
organisms?
chiasma-dominant
2.
diploid-dominant
alternation of generations
Question 20
1. Two duplicated homologous chromosomes bound together by chiasmata is called a(n)
_________.
synapsis
2.
cytokinesis
chromatid separation
interphase
Question 21
1. A specialized cell that produces gametes, such as eggs or sperm is called a _________.
germ
2. cell
gonad
somatic cell
zygote
Question 22
1. The process of meiosis always begins with what type of cell?
vegetative
2.
haploid
asexual
diploid
Question 23
1. A period of rest between meiosis I and meiosis II where there is no replication of DNA is
called
interphase.
2.
prophase.
cytokinesis.
interkinesis.
Question 24
1. A majority of ____________ organisms employ meiosis and fertilization to reproduce.
prokaryote
2.
eukaryote
archaea
bacteria
Question 25
1. At which stage of meiosis are homologous chromosomes separated from each other?
prophase
2.
I
prophase II
anaphase I
anaphase II
Question 26
1. In one statement, what is sexual reproduction?
The
2. production of two haploid cells, one from each of two parents, and the subsequent
fusion of two haploid cells to form a single, unique diploid cell.
The production of two diploid cells, one from each of two parents, and the subsequent
fusion of two diploid cells to form a single, unique tetraploid cell.
The production of two haploid cells, one from each of two parents, and the subsequent
fusion of two diploid cells to form a single, unique aneuploid cell.
Question 27
1. Which term explains an interaction between genes such that one gene masks or interferes
with the expression of another.
dominant
2.
recessive
codominant
epistasis
Question 28
1. If a gorilla has somatic cells containing 48 chromosomes, how many chromosomes will
be found in its gametes?
232.
24
48
96
Question 29
1. Sexual reproduction involves the fusion of __________ cells to form a single, unique
__________ cell.
diploid,
2.
haploid
diploid, tetraploid
haploid, diploid
haploid, tetraploid
Question 30
1. Sister chromatids are separated from each other during ________________.
meiosis
2.
I
meiosis II
interphase
fertilization
Question 31
1. One of Mendel s principles of genetics says that traits are inherited as
particles.
2.
genes.
factors.
chromosomes.
Question 32
1. DNA synthesis in meiosis occurs during _____________.
S phase
2.
G1 phase
metaphase I
anaphase II
Question 33
1. Which of the following is true of meiosis?
It produces
2.
identical cells.
It takes place in all cells.
It produces diverse gametes.
It is part of asexual reproduction.
Question 34
1. A reproductive benefit of the sexual reproductive cycle is that it introduces
_________into offspring.
variation
2.
mutations
nondisjunctions
polyploidy
Question 35
1. The part of meiosis that is similar to mitosis is ________.
meiosis
2.
I
anaphase I
meiosis II
interkinesis
Question 36
1. An individual with the appropriate number of chromosomes for their species is a(n)
__________.
haploid
2.
euploid
diploid
aneuploid
Question 37
1. the formation of a close association between homologous chromosomes during prophase
I (Ch 07)
1 points
Question 38
1. the sequence of events in the development of an organism and the production of cells that
produce offspring (Ch 07)
1 points
Question 39
1. the photographic image of a karyotype (Ch 07)
1 points
Question 40
1. a nuclear division that produces daughter nuclei each having one-half as many
chromosome sets as the parental nucleus; meiosis I is this type of division (Ch 07)
1 points
Question 41
1. the first round of meiotic cell division; referred to as reduction division because the
resulting cells are haploid (Ch 07)