Deck 1: Genetics: An Introduction

Question 1

Eukaryotic chromosomes consist of

A)DNA alone.
B)DNA complexed with protein.
C)DNA complexed with RNA.
D)DNA complexed with fatty acids.
E)DNA complexed with protein and RNA.

Answer 1

B

Question 2

A map unit (μ)is

A)the position of a gene on the chromosome.
B)the unit of genetic distance on a chromosome.
C)the unit of physical distance on a chromosome.
D)equivalent to a nucleotide.
E)equal to the number of recombinant progeny.

Answer 2

B

Question 3

The branch of genetics concerned with analyzing the structure and function of genes is

A)molecular genetics.
B)plant genetics.
C)transmission genetics.
D)population genetics.
E)applied genetics.

Answer 3

A

Question 4

Bacteria and Archaea are

A)eukaryotic.
B)prokaryotic.
C)archaeotic.
D)anucleotic.
E)proteozoic.

Question 5

Quantitative genetics is

A)the quantitative study of the activity of a gene.
B)the study of the genetic diversity within a large group of individuals of the same species.
C)the study of the genetic diversity within members of a number of related species.
D)the study of traits that are determined by a number of genes simultaneously.
E)the study of the number of characteristics found in an organism.

Question 6

The organism that Mendel used for his experiments was

A)E.coli.
B)the fruit fly.
C)maize.
D)yeast.
E)the pea plant.

Question 7

The principles of heredity were first established through breeding experiments carried out in ________ by Gregor Mendel.

A)the late 1700s
B)the 1950s
C)the 1860s
D)the early 1900s
E)the mid-1600s

Question 8

Which of the following is a nematode worm that has been used as a model organism in genetics?

A)Drosophila melanogaster
B)Mus musculus
C)Arabidopsis thaliana
D)Caenorhabditis elegans
E)Homo sapiens

Question 9

There is a sharp divide between basic and applied research.

Question 10

Transposons are

A)proteins that are stable.
B)proteins that are unstable.
C)DNA segments that are stable.
D)DNA segments that are unstable.
E)DNA segments that code for proteins.

Question 11

Tetrahymena is a

A)fungus.
B)protozoa.
C)green alga.
D)weed.
E)bacteria.

Question 12

The field of genetics includes

A)the study of heredity.
B)the molecular nature of the genetic material.
C)the ways in which genes control life functions.
D)the distribution and behavior of genes in populations.
E)All of these

Question 13

Genes influence all aspects of life because they

A)are structural elements of the cell.
B)regulate movement of proteins.
C)produce RNA and protein needed for different processes.
D)localize to the nucleus.
E)are needed for DNA synthesis.

Question 14

The smooth endoplasmic reticulum has ribosomes attached to it.

Question 15

An ideal organism for a geneticist to use as a study organism would possess which of the following characteristics?

A)A relatively short life cycle
B)A large degree of genetic variation among individuals
C)Matings that produce large numbers of offspring
D)A well-characterized genetic background,karyotype,etc.
E)All of these are desirable characteristics

Question 16

In eukaryotic cells,________ are energy-producing organelles that contain DNA.

A)nuclei
B)lysosomes
C)chromosomes
D)nucleoli
E)mitochondria

Question 17

Genetics is central to biology because genes and their functions form the basis of all life processes.

Question 18

Translation of RNA into proteins occurs

A)in the nucleus.
B)in the endoplasmic reticulum.
C)in the cytoplasm.
D)in both the nucleus and the cytoplasm.
E)in both the nucleus and the endoplasmic reticulum.

Question 19

Bacteria and plants both have a rigid cell wall outside the cell membrane.

Question 20

What characteristics does an organism have to possess to be a good genetic model?

Question 21

What is recombination frequency?

Question 22

What is the hypothetico-deductive method of investigation?

Question 23

Why are genetic databases so important to the study of modern genetics?

Question 24

E.coli is a rod-shaped bacterium found in the human intestine.

Question 25

How can a genetic map be used?

Question 26

Archaea are prokaryotes that are often found in inhospitable conditions such as hot springs and salt marshes.

Question 27

For geneticists,why is it important that genetic variability exist in the population under study?

Question 28

How does the knowledge of complete genomes of different organisms help us in any way?

Question 29

Centrioles are also called basal bodies.

Question 30

The nucleus separates the chromosomes from the rest of the cell.How is the information in the DNA communicated to the cell?

Question 31

What is the difference between PubMed and OMIM?

Question 32

What is recombinant DNA technology?

Question 33

Which organelles besides the nucleus contain their own DNA?

Question 34

The centrosomes are a part of the chromosome that help in chromosome movement during mitosis and meiosis.

Question 35

How do mutations help us in understanding the particular functions of a gene?

Question 36

Are genetic maps based on the actual distance on chromosomes as measured by nucleotides?

Question 37

Membrane-bound nuclei are characteristic of both Archaea and eukaryotes.

Question 38

Genetic maps show the relative location and arrangement of genes on chromosomes.

Question 39

What are the differences between eukaryotes and prokaryotes?

Question 40

What is the technique that is used to amplify DNA sequences?