BIO457 GENETICS QUIZ 1 Already Passed
Eukaryotic cells differ from prokaryotic cells in that only the former contain
A) ribosomes.
B) cytoplasm.
C) DNA.
D) a nucleus. - =D
Molecular genetics is the study of the
A) transmission of genes from generation to generation.
B) structure and function of genes.
C) heredity of single--gene traits in groups of individuals.
D) heredity of multigene traits in populations. - =B
Chlamydomonas reinhardtii, Tetrahymena, Saccharomyces, and Paramecium are all
A) model organisms that have contributed to our knowledge of genetics.
B) unicellular.
C) eukaryotes.
D) All of the above are correct. - =D
Quantitative genetics is the study of
A) transmission of genes from generation to generation.
B) structure and function of genes at the chemical level.
C) heredity of single--gene traits in groups of individuals.
D) heredity of multigene traits in populations. - =C
Which of the following traits is NOT important for a model organism in genetics?
A) long life cycle
B) production of many offspring in a single mating
,C) well-known genetic history
D) easily grown, reared, or maintained - =A
Organelles that possess their own genetic material include
A) centrioles and the Golgi body.
B) ribosomes and centrioles.
C) mitochondria and chloroplasts.
D) the endoplasmic reticulum. - =C
Gregor Mendel is credited with discovering the principles of modern genetics. Which of the
following was a contribution of Mendel to the founding principles of modern genetics?
A) Used pea plants to map genes to locations on chromosomes.
B) Studied the quantitative relationships of inheritance of traits to show that a factor is
transmitted from parents to offspring in a predictable way.
C) Determined that proteins are the products of genes.
D) Carried out a detailed analysis of the molecular features of genes, including the regulation of
gene expression. - =B
A _____________ is the location of specific gene on the _____________of a chromosome.
A) genetic map; DNA molecule
B) gene locus; genetic map
C) nucleotide; DNA molecule
D) gene position; map unit - =B
Genetic distances between gene loci on genetic maps are usually given in
A) nucleotides.
B) centimeters
C) amino acids
D) map units - =D
, Which of the following statements about model genetic organisms is correct?
A) Prokaryotic organisms are not used as models because they typically do not reproduce
sexually.
B) Because humans are multicellular organisms, few genetic model species are single-celled
organisms.
C) Rapid generation time, small size, and large reproductive capacity all facilitate genetic
studies.
D) All of the above are important characteristics of genetic model organisms. - =C
____________ is (are) the organelle(s) found in eukaryotic cells that can contain ribosomes and
process(es) proteins for distribution throughout the cell.
A) Endoplasmic reticulum
B) Centrioles
C) Mitochondria
D) Lysosomes - =A
Which of the following is a small multicellular organism that is a useful genetic model?
A) Caenorhabditis elegans
B) Escherichia coli
C) Paramecium
D) Saccharomyces cerevisiae - =A
What is the critical feature that distinguishes prokaryotes from eukaryotes?
A) Prokaryotes have walled cells; eukaryotes do not.
B) Eukaryotes have genetic material located inside nucleus surrounded by a nuclear membrane,
whereas the genetic material of a prokaryote is not surrounded by a nuclear membrane.
C) Prokaryotes are always smaller than eukaryotes.
D) All prokaryotes are unicellular, whereas all eukaryotes are multicellular. - =B
Eukaryotic cells differ from prokaryotic cells in that only the former contain
A) ribosomes.
B) cytoplasm.
C) DNA.
D) a nucleus. - =D
Molecular genetics is the study of the
A) transmission of genes from generation to generation.
B) structure and function of genes.
C) heredity of single--gene traits in groups of individuals.
D) heredity of multigene traits in populations. - =B
Chlamydomonas reinhardtii, Tetrahymena, Saccharomyces, and Paramecium are all
A) model organisms that have contributed to our knowledge of genetics.
B) unicellular.
C) eukaryotes.
D) All of the above are correct. - =D
Quantitative genetics is the study of
A) transmission of genes from generation to generation.
B) structure and function of genes at the chemical level.
C) heredity of single--gene traits in groups of individuals.
D) heredity of multigene traits in populations. - =C
Which of the following traits is NOT important for a model organism in genetics?
A) long life cycle
B) production of many offspring in a single mating
,C) well-known genetic history
D) easily grown, reared, or maintained - =A
Organelles that possess their own genetic material include
A) centrioles and the Golgi body.
B) ribosomes and centrioles.
C) mitochondria and chloroplasts.
D) the endoplasmic reticulum. - =C
Gregor Mendel is credited with discovering the principles of modern genetics. Which of the
following was a contribution of Mendel to the founding principles of modern genetics?
A) Used pea plants to map genes to locations on chromosomes.
B) Studied the quantitative relationships of inheritance of traits to show that a factor is
transmitted from parents to offspring in a predictable way.
C) Determined that proteins are the products of genes.
D) Carried out a detailed analysis of the molecular features of genes, including the regulation of
gene expression. - =B
A _____________ is the location of specific gene on the _____________of a chromosome.
A) genetic map; DNA molecule
B) gene locus; genetic map
C) nucleotide; DNA molecule
D) gene position; map unit - =B
Genetic distances between gene loci on genetic maps are usually given in
A) nucleotides.
B) centimeters
C) amino acids
D) map units - =D
, Which of the following statements about model genetic organisms is correct?
A) Prokaryotic organisms are not used as models because they typically do not reproduce
sexually.
B) Because humans are multicellular organisms, few genetic model species are single-celled
organisms.
C) Rapid generation time, small size, and large reproductive capacity all facilitate genetic
studies.
D) All of the above are important characteristics of genetic model organisms. - =C
____________ is (are) the organelle(s) found in eukaryotic cells that can contain ribosomes and
process(es) proteins for distribution throughout the cell.
A) Endoplasmic reticulum
B) Centrioles
C) Mitochondria
D) Lysosomes - =A
Which of the following is a small multicellular organism that is a useful genetic model?
A) Caenorhabditis elegans
B) Escherichia coli
C) Paramecium
D) Saccharomyces cerevisiae - =A
What is the critical feature that distinguishes prokaryotes from eukaryotes?
A) Prokaryotes have walled cells; eukaryotes do not.
B) Eukaryotes have genetic material located inside nucleus surrounded by a nuclear membrane,
whereas the genetic material of a prokaryote is not surrounded by a nuclear membrane.
C) Prokaryotes are always smaller than eukaryotes.
D) All prokaryotes are unicellular, whereas all eukaryotes are multicellular. - =B
