During asexual reproduction, the genetic material
of the parent is passed on to the offspring by
A) homologous pairing.
B) mitosis and cytokinesis.
C) meiosis and fertilization.
D) meiosis and cytokinesis.
During asexual reproduction, the genetic material
of the parent is passed on to the offspring by
A) homologous pairing.
B) mitosis and cytokinesis.
C) meiosis and fertilization.
D) meiosis and cytokinesis.
Which of the following cells is haploid?
a) egg cell
b) lung cell
c) sperm cell
d) kidney cell
e) a and c
f) b and d
Which of the following cells is haploid?
a) egg cell
b) lung cell
c) sperm cell
d) kidney cell
e) a and c
f) b and d
Which of the following cells is diploid?
a) egg cell
b) lung cell
c) sperm cell
d) kidney cell
e) a and c
f) b and d
Which of the following cells is diploid?
a) egg cell
b) lung cell
c) sperm cell
d) kidney cell
e) a and c
f) b and d
Which of the following statements is false?
A) a typical body cell is called a somatic cell
B) gametes are haploid cells
C) somatic cells are diploid
D) somatic cells are made by meiosis
E) a zygote is a fertilized egg
Which of the following statements is false?
A) a typical body cell is called a somatic cell
B) gametes are haploid cells
C) somatic cells are diploid
D) somatic cells are made by meiosis
E) a zygote is a fertilized egg
During meiotic cell division, the process in which
homologous pairs of chromosomes separate and
move apart is known as
A) fission
B) regeneration
C) disjunction
D) nondisjunction
During meiotic cell division, the process in which
homologous pairs of chromosomes separate and
move apart is known as
A) fission
B) regeneration
C) disjunction
D) nondisjunction
An animal cell with 12 chromosomes undergoes
normal meiosis. What is the total number
of chromosomes in each of the resulting daughter
cells?
a) 6
b) 8
c) 12
d) 24
An animal cell with 12 chromosomes undergoes
normal meiosis. What is the total number
of chromosomes in each of the resulting daughter
cells?
a) 6
b) 8
c) 12
d) 24
In sexually reproducing organisms, the source of
chromosomes in the offspring is
A) almost all from one parent, usually the father.
B) almost all from one parent, usually the mother.
C) half from the father and half from the mother.
D) the X comes from the mother and the
autosomes come from the father.
E) a random mixing of chromosomes from both
parents.
In sexually reproducing organisms, the source of
chromosomes in the offspring is
A) almost all from one parent, usually the father.
B) almost all from one parent, usually the mother.
C) half from the father and half from the mother.
D) the X comes from the mother and the
autosomes come from the father.
E) a random mixing of chromosomes from both
parents.
Asexual reproduction of diploid organisms normally
results in new organisms that contain cells with
A) fewer chromosomes than are found in the cells
of the parent
B) the haploid number of chromosomes
C) more chromosomes than are found in the cells
of the parent
D) the diploid number of chromosomes
Asexual reproduction of diploid organisms normally
results in new organisms that contain cells with
A) fewer chromosomes than are found in the cells
of the parent
B) the haploid number of chromosomes
C) more chromosomes than are found in the cells
of the parent
D) the diploid number of chromosomes
How many total chromosomes are found in a
normal gamete (sex cell) of a human?
a) 23
b) 32
c) 46
d) 64
How many total chromosomes are found in a
normal gamete (sex cell) of a human?
a) 23
b) 32
c) 46
d) 64
Which of the following indicates the types of cells
that are produced in humans by meiosis and
mitosis?
a) body cells (somatic cells ) are produced in both
mitosis and meiosis
b) body cells are produced in meiosis; gametes in
mitosis
c) gametes are produced in both meiosis and
mitosis
d) body cells are produced in mitosis; gametes in
meiosis
Which of the following indicates the types of cells
that are produced in humans by meiosis and
mitosis?
a) body cells (somatic cells ) are produced in both
mitosis and meiosis
b) body cells are produced in meiosis; gametes in
mitosis
c) gametes are produced in both meiosis and
mitosis
d) body cells are produced in mitosis; gametes in
meiosis
As the result of normal meiosis, the daughter cells
are
a) genetically identical to each other but not to the
parent cell
b) genetically identical to the parent cell but not to
each other
c) genetically identical to the parent cell and to each
other
d) identical to neither the parent cell nor to each
other
As the result of normal meiosis, the daughter cells
are
a) genetically identical to each other but not to the
parent cell
b) genetically identical to the parent cell but not to
each other
c) genetically identical to the parent cell and to each
other
d) identical to neither the parent cell nor to each
other
Which of the following is haploid?
A) zygote
B) embryo
C) muscle cell
D) gamete
Which of the following is haploid?
A) zygote
B) embryo
C) muscle cell
D) gamete
Which statement concerning the reproductive cells in
the diagram below is correct?
A) The cells are produced by mitosis and contain all the genetic
information of the father
B) If one of these cells fertilizes an egg, the offspring will be identical to
the father
C) Each of these cells contains only half the genetic information
necessary for the formation of an offspring
D) An egg fertilized by one of these cells will develop into a female with
the same characteristics as the mother
Which statement concerning the reproductive cells in
the diagram below is correct?
A) The cells are produced by mitosis and contain all the genetic
information of the father
B) If one of these cells fertilizes an egg, the offspring will be identical to
the father
C) Each of these cells contains only half the genetic information
necessary for the formation of an offspring
D) An egg fertilized by one of these cells will develop into a female with
the same characteristics as the mother
Which process is represented in the diagram?
A) budding
B) mitosis
C) fertilization
D) meiosis
Which process is represented in the diagram?
A) budding
B) mitosis
C) fertilization
D) meiosis
Identical twins develop from
A) two eggs fertilized by one sperm cell
B) two zygotes that fuse during cleavage
C) one fertilized egg that divides in two
D) one egg fertilized by two sperm cells
Identical twins develop from
A) two eggs fertilized by one sperm cell
B) two zygotes that fuse during cleavage
C) one fertilized egg that divides in two
D) one egg fertilized by two sperm cells
As the result of normal mitosis, the daughter cells
are
a) genetically identical to each other but not to the
parent cell
b) genetically identical to the parent cell but not to
each other
c) genetically identical to the parent cell and to each
other
d) identical to neither the parent cell nor to each
other
As the result of normal mitosis, the daughter cells
are
a) genetically identical to each other but not to the
parent cell
b) genetically identical to the parent cell but not to
each other
c) genetically identical to the parent cell and to each
other
d) identical to neither the parent cell nor to each
other
Most humans have 22 pairs of ________________
and one pair of ___________________.
A) somatic chromosomes, gamete chromosomes
B) autosomes, sex chromosomes
C) gamete chromosomes, somatic chromosomes
D) sex chromosomes, autosomes
Most humans have 22 pairs of ________________
and one pair of ___________________.
A) somatic chromosomes, gamete chromosomes
B) autosomes, sex chromosomes
C) gamete chromosomes, somatic chromosomes
D) sex chromosomes, autosomes
Diploid cells of the fruit fly Drosophila have 10
chromosomes. How many chromosomes does a
Drosophila gamete have?
A) one
B) two
C) five
D) ten
E) twenty
Diploid cells of the fruit fly Drosophila have 10
chromosomes. How many chromosomes does a
Drosophila gamete have?
A) one
B) two
C) five
D) ten
E) twenty
How many total chromosomes are found in a
normal body cell (somatic cell) of a human?
a) 23
b) 32
c) 46
d) 64
How many total chromosomes are found in a
normal body cell (somatic cell) of a human?
a) 23
b) 32
c) 46
d) 64
The abnormal zygote is most likely the result
of
A) chromosome breakage
B) gene linkage
C) nondisjunction
D) polyploidy
The abnormal zygote is most likely the result
of
A) chromosome breakage
B) gene linkage
C) nondisjunction
D) polyploidy
The resulting abnormal zygote would be
considered a
A) monosomy
B) trisomy
The resulting abnormal zygote would be
considered a
A) monosomy
B) trisomy
The two chromosomes of a homologous pair
A) carry genes that code for identical traits at
the same locations
B) carry information for the same
characteristics at different locations
C) carry identical genetic information at
different locations
D) carry different versions of genes (alleles)
that code for the same trait at the same
locations
The two chromosomes of a homologous pair
A) carry genes that code for identical traits at
the same locations
B) carry information for the same
characteristics at different locations
C) carry identical genetic information at
different locations
D) carry different versions of genes (alleles)
that code for the same trait at the same
locations
Chromosome number changes during meiosis because
the process consists of
A) two cell divisions without any chromosome
replication.
B) a single cell division without any chromosome
replication.
C) two cell divisions in which half of the chromosomes
are destroyed.
D) two cell divisions and only a single round of
chromosome replication.
E) four cell divisions with no chromosome replication.
Chromosome number changes during meiosis because
the process consists of
A) two cell divisions without any chromosome
replication.
B) a single cell division without any chromosome
replication.
C) two cell divisions in which half of the chromosomes
are destroyed.
D) two cell divisions and only a single round of
chromosome replication.
E) four cell divisions with no chromosome replication.
The diagram below shows a process that affects
chromosomes during meiosis.
This process can be used to explain
A) why some offspring are genetically identical to their
parents
B) the process of differentiation in offspring
C) why some offspring physically resemble their
parents
D) the origin of new combinations of traits in offspring
The diagram below shows a process that affects
chromosomes during meiosis.
This process can be used to explain
A) why some offspring are genetically identical to their
parents
B) the process of differentiation in offspring
C) why some offspring physically resemble their
parents
D) the origin of new combinations of traits in offspring
A karyotype would be least likely to show
which of the following?
A) an extra chromosome
B) a point mutation
C) a missing chromosome
D) part of a chromosome turned around
A karyotype would be least likely to show
which of the following?
A) an extra chromosome
B) a point mutation
C) a missing chromosome
D) part of a chromosome turned around
In humans, the fertilization of two eggs
at the same time usually results in
A) gene mutations
B) aneuploidy
C) fraternal twins
D) identical twins
In humans, the fertilization of two eggs
at the same time usually results in
A) gene mutations
B) aneuploidy
C) fraternal twins
D) identical twins
Sexual reproduction by necessity involves
which two processes?
A) meiosis and fertilization
B) mutation and translocation
C) nondisjunction and differentiation
D) mitosis and fertilization
Sexual reproduction by necessity involves
which two processes?
A) meiosis and fertilization
B) mutation and translocation
C) nondisjunction and differentiation
D) mitosis and fertilization
Which diagram BEST represents the
formation of a zygote that could
develop into a normal human male?
Which diagram BEST represents the
formation of a zygote that could
develop into a normal human male?