Zoology, 8th Edition (Miller)

Chapter 3: Cell Division and Inheritance

Quiz



1.

The period from the time a cell is produced until it completes mitosis is called the
A)mitotic phase.
B)cell cycle.
C)cytokinesis phase.
D)G1 phase.
2.

Most of the cell cycle is occupied by the
A)G1 phase.
B)G2 phase.
C)S phase.
D)interphase.
3.

Chromosome replication occurs during the __________ of mitosis.
A)G1 phase
B)G2 phase
C)S phase
D)interphase
4.

A copy of a chromosome produced by replication is called a
A)chromatid.
B)daughter chromosome.
C)sister chromosome.
D)both b and c.
5.

The microtubules of the mitotic spindle are attached to the
A)kinetochore.
B)centromere.
C)centrosome.
D)all of the above (a-c).
6.

Chromosomes become visible with the light microscope during __________ phase.
A)prophase
B)metaphase
C)anaphase
D)telophase
7.

The mitotic spindle disassembles during what phase of mitosis?
A)prophase
B)metaphase
C)anaphase
D)telophase
8.

During prophase I of meiosis, homologous chromosomes line up side-by-side in a process called
A)genetic recombination.
B)meiosis II.
C)synapsis.
D)crossing over.
9.

The segregation of homologus chromosomes during meiosis I is called
A)phenotypic expression.
B)codominance.
C)independent assortment.
D)transcription.
10.

Crossing over results in
A)synapsis.
B)syngamy.
C)genetic recombination.
D)dyad formation.
11.

Which of the following is not a source of genetic variation upon which evolutionary forces act?
A)independent assortment
B)cytokinesis
C)crossing-over
D)point mutations
12.

The expected percentage of offspring in the F1 generation possessing the dominant trait following a monohybrid cross would be
A)0.
B)25.
C)50.
D)100.
13.

Spermatogenesis gives rise to __________ sperm cells.
A)1
B)2
C)3
D)4
14.

In the DNA molecule, the base adenine pairs with the base
A)guanine.
B)cytosine.
C)thymine.
D)uracil.
15.

A DNA nucleotide consists of all of the following EXCEPT:
A)a base.
B)ribose.
C)deoxyribose.
D)phosphate.
16.

During protein synthesis, ______ is produced in the nucleus and carries the genetic code to the cytoplasm.
A)transfer RNA
B)messenger RNA
C)ribosomal RNA
D)deoxynucleotide
17.

_______ involves the formation of a polypeptide chain at the:______.
A)Transcription/nucleus
B)Transcription/ribosome
C)Translation/nucleolus
D)Translation/ribosome
18.

A sequence of three bases in mRNA that codes for an amino acid is a
A)nucleotide.
B)nucleoside.
C)codon.
D)anticodon.
19.

The ______ carries amino acids to the ribosome where a polypeptide is assembled.
A)transfer RNA
B)messenger RNA
C)ribosomal RNA
D)deoxynucleotide
20.

During protein synthesis at the ribosome, the ______ pairs with the _________.
A)nucleotide/nucleoside
B)codon/anticodon
C)codon/amino acid
D)mRNA/DNA
21.

All of the following statements regarding DNA and RNA are true except one. Select the false statement.
A)RNA is single stranded, and DNA is double stranded.
B)RNA contains the base thymine, and DNA contains the base uracil.
C)RNA is found in the nucleus and cytoplasm, and DNA is mainly in the nucleus.
D)RNA contains the sugar ribose, and DNA contains the sugar deoxyribose.
22.

Which of the following are pyrimidine bases found in RNA?
A)adenine and guanine
B)cytosine and thymine
C)adenine and uracil
D)cytosine and uracil
23.

DNA replication is said to be semiconservative because
A)it is remarkably error free.
B)it results in one new DNA molecule and one parental molecule.
C)it results in two DNA molecules, each consisting of one new and one parental strand.
D)it results in two completely new parental molecules.
24.

The fact that more than one codon in mRNA can code for a particular amino acid is referred to as
A)degeneracy.
B)homology.
C)wobble.
D)antiparallel.
25.

Which of the following occurs during transcription?
A)Messenger RNA is produced.
B)Transfer RNA delivers amino acids to a ribosome.
C)Codons pair with anticodons.
D)A new strand of DNA is synthesized.
26.

Which of the following occurs at the beginning of translation?
A)A UGA codon is aligned with the P site of the ribosome.
B)An AUG codon is aligned with the P site of the ribosome.
C)RNA polymerase recognizes a promotor.
D)Two strands of DNA are separated.
27.

Homologous chromosomes carry genes for the same traits, but not necessarily for the same expression of the traits.
A)True
B)False
28.

Genetic recombination or crossing over is a major form of genetic variation.
A)True
B)False
29.

Prophase begins once daughter chromosomes appear at opposite poles of the cell.
A)True
B)False
30.

Before Prophase I, sister chromatids have identical DNA.
A)True
B)False
31.

The 5' end of one DNA strand would be directly across from the 3' end of the sister strand. The term antiparallel refers to this condition.
A)True
B)False
32.

In some cases, multiple RNA codons code for the same amino acid.
A)True
B)False
33.

Point mutations are the source of new genetic material and account for evolutionary change. Most point mutations remain hidden in body cells and are never expressed.
A)True
B)False
34.

Nondisjunction usually results in portions of chromosomes breaking and reattaching in novel ways.
A)True
B)False
35.

An animal that is heterozygous for a particular trait would possess two alleles for that trait.
A)True
B)False
36.

Independent assortment is explained by events occurring during the second division of meiosis.
A)True
B)False
37.

The visual expression of alleles is called the phenotype.
A)True
B)False
38.

Codominance occurs when two alleles are expressed equally and the offspring resemble neither parent.
A)True
B)False
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