Biology test

Question 1

Microscopic protein structures that help divide genetic material during cell division.

Answer 1

V. Spindle Fibers

Question 2

Having the gametic number of chromosomes typically including one of each pair of homologous chromosomes.

Answer 2

J. Haploid Cell

Question 3

The stage of mitosis and meiosis in which the chromosomes become arranged in the equatorial (middle) plane of the spindle.

Answer 3

B. Metaphase

Question 4

Cells produced after a single cell undergoes cell division.

Answer 4

W. Daughter cells

Question 5

Any of the rod-shaped or threadlike DNA-containing structures of cellular organisms that are located in the nucleus of eukaryotes.

Answer 5

P. Chromosome

Question 6

A cellular organelle of eukaryotes that is essential to cell functions (such as reproduction and protein synthesis).

Answer 6

C. Nucleus

Question 7

The period in the cell cycle from the completion of DNA replication to the beginning of cell division

Answer 7

T. G2 phase

Question 8

Having two haploid sets of homologous chromosomes.

Answer 8

O. Diploid cell

Question 9

Any of the alternative forms of a gene that may occur at a given locus; the position in a chromosome of a particular gene or allele.

Answer 9

E. Allele

Question 10

The interval between the end of one mitotic or meiotic division and the beginning of another.

Answer 10

N. Interphase

Question 11

One of a pair of cellular organelles that occur especially in animals; are found near the nucleus; a function in the formation of the spindle fibers during cell division.

Answer 11

I. Centriole

Question 12

Cleavage (separation) of the cytoplasm into daughter cells following nuclear division.

Answer 12

Q. Cytokinesis

Question 13

The period in the cell cycle during which DNA replication takes place.

Answer 13

X. S phase

Question 14

The process by which cells multiply involving both nuclear and cytoplasmic division.

Answer 14

U. Cell division

Question 15

The stage of mitosis and meiosis in which the chromosomes move toward the poles of the spindle.

Answer 15

K. Anaphase

Question 16

A specific sequence of nucleotides in DNA or RNA that is located usually on a chromosome and that is the functional unit of inheritance controlling the transmission and expression of one or more traits.

Answer 16

F. Gene

Question 17

A complex chiefly of DNA and histone in eukaryotic cells that is usually dispersed in the interphase nucleus and condensed into chromosomes in mitosis and meiosis; happens in the middle of interphase.

Answer 17

S. Chromatin

Question 18

The period in the cell cycle from the end of cell division to the beginning of DNA replication.

Answer 18

M. G1 phase

Question 19

Any of various nucleic acids that are usually the molecular basis of heredity, are constructed of a double helix held together by hydrogen bonds.

Answer 19

A. DNA

Question 20

The initial stage of mitosis and of the mitotic division of meiosis characterized by the condensation of chromosomes consisting of two chromatids, disappearance of the nucleolus and nuclear membrane, and formation of mitotic spindle.

Answer 20

H. Prophase

Question 21

One of the usually paired and parallel strands of a duplicated chromosome joined by a single centromere.

Answer 21

L. Chromatid

Question 22

The final stage of mitosis and of the second division of meiosis in which the spindle disappears and the nucleus reforms around each set of chromosomes.

Answer 22

R. Telophase

Question 23

A process that takes place in the nucleus of a dividing cell, involves typically a series of steps consisting of prophase, metaphase, anaphase, and telophase, and results in the formation of two new nuclei each having the same number of chromosomes as the parent nucleus.

Answer 23

G. Mitosis

Question 24

The point or region on a chromosome to which the spindle attaches during mitosis and meiosis.

Answer 24

D. Centromere