Review

Question 1

A hematopoietic stem cell can produce new cells that can further differentiate into many different kinds of blood cells but not into other types of cells. Therefore, a hematopoietic stem cell is a _____ stem cell.

Answer 1

Pluripotent

Question 2

Equatorial division occurs during meiosis I

Answer 2

False

Question 3

Hollow components of cytoskeleton that help form cilia

Answer 3

Microtubules

Question 4

Which of the following would be the least abundant element in an organism?

Answer 4

Sodium

Question 5

Centromeres divide and sister chromatids move to opposite ends of the cell during

Answer 5

Anaphase

Question 6

Place the following steps in the correct order, from first to last, that they occur during one complete cell cycle

Answer 6

S of Interphase, Prophase, Metaphase, Cytokinesis

Question 7

Enzymes belong to this group of chemicals:

Answer 7

Proteins

Question 8

If cell is damaged or will not divide for a long time, then it can enter:

Answer 8

G0

Question 9

Telophase is the step in mitosis when the nuclear envelope reassembles and the spindle breaks down.

Answer 9

True

Question 10

Huntington disease is an autosomal dominant trait that carried on chromosome 4. The genotype of a carrier for Huntington disease would be:

Answer 10

Huntington disease cannot have a carrier because it is a dominantly inherited condition

Question 11

Apoptosis is a term used to describe:

Answer 11

Cell death

Question 12

Which of the following would best describe the phenotypes of individuals for a recessively inherited disease

Answer 12

Disease is expressed only in individuals that are homozygous for the recessive allele

Question 13

Induced pluripotent stem cells (iPS cells) could be derived from:

Answer 13

Adult somatic cells that are treated with specific factors

Question 14

Which of the following is not a reason that single-gene (Mendelian) diseases differ from other diseases?

Answer 14

Traditional drug therapies are not effective

Question 15

The genome of a somatic cell could be described as haploid.

Answer 15

False

Question 16

Which of the following would best describe the phenotypes of individuals for a dominantly inherited disease?

Answer 16

Disease is expressed in individuals that are homozygous for the dominant allele and in heterozygous individuals.

Question 17

disease carrier is:

Answer 17

any person who is heterozygous for a recessively inherited disease

Question 18

DNA & RNA are examples of this group

Answer 18

Nucleic Acid

Question 19

primary difference between a stem cell and a progenitor cell is that a stem cell can regenerate itself but a progenitor cell cannot.

Answer 19

True

Question 20

A primary spermatocyte is diploid but a secondary spermatocyte is haploid

Answer 20

True

Question 21

In the somatic cells of one individual, the two alleles for a given gene are:

Answer 21

located at the same location on each of the two homologous chromosomes

Question 22

Before mitosis can occur, each chromosome must be replicated. The two copies of a chromsome are referred to as:

Answer 22

Sister chromatids

Question 23

The two alleles for a given gene in one individual:

Answer 23

May be different or the same

Question 24

A gene is a:

Answer 24

Sequence of DNA (series of DNA bases) that is a code for a specific protein

Question 25

The component of the cytoskeleton that is primarily used to provide cells with mechanical strength and connect cells together to form tissues

Answer 25

Intermediate Filaments

Question 26

Sister chromatids are separated from each other during:

Answer 26

Both mitosis and meiosis 2

Question 27

The composition of the plasma membrane and other lipid bilayers allows hydrophilic molecules to easily pass through it, while preventing hydrophobic molecules from passing.

Answer 27

False

Question 28

fertilized egg (zygote) would be considered

Answer 28

Totipotent

Question 29

How many alleles for any given gene are found in a reproductive cell (sperm or egg)?

Answer 29

1

Question 30

The study of inherited traits and their variations

Answer 30

Genetics

Question 31

Transmission of traits and biological information between generations

Answer 31

Heredity

Question 32

Molecule that stores information and is the molecular basis of genetics

Answer 32

DNA

Question 33

The basic unit of heredity that contains the instructions to make a specific protein

Answer 33

Gene

Question 34

All of the DNA that constitutes an organism

Answer 34

Genome

Question 35

chromosome that does not contain sex determining genes

Answer 35

Autosome

Question 36

Photograph of all a cell's chromosomes stained and arranged in order from largest to smallest

Answer 36

Karyotype

Question 37

Alternative forms of the same gene

Answer 37

Alleles

Question 38

Traits that are determined by the alleles of a single gene

Answer 38

Mendelian Traits

Question 39

Visible or measurable traits that result from expression of an allele

Answer 39

Phenotype

Question 40

One copy of allele is needed for phenotype to occur

Answer 40

Dominant

Question 41

Involves sequencing all of the DNA from a complex sample that may contain DNA from many different organisms.

Answer 41

Metagenomics