Chapter 14 - Cell Division

Question 1

Cell continuity

Answer 1

All cells develop from pre-existing cells

Question 2

Chromosomes

Answer 2

Are coiled threads of dna (which forms genes) and protein that become visible in the nucleus at cell division

Question 3

Gêne

Answer 3

A section of dna that contains the instructions for the formation of a protein

Question 4

Haploid cell

Answer 4

Has one set of chromosomes, i.e. only one of each type of chromosome in the nucleus

Question 5

Diploid cell

Answer 5

Has 2 sets of chromosomes, i.e. has two of each type of chromosome in the nucleus

Question 6

Homologous pair

Answer 6

Two chromosomes of similar size with the same sequence of genes

Question 7

The cell cycle

Answer 7

The changes that take place in a cell during the period between one cell division and the next

Question 8

Interphase

Answer 8

The phase in the call cycle when the cell isn’t dividing

Question 9

Mitosis

Answer 9

A form of nucleus division in which one nucleus divides to form two nuclei, each containing the same number of chromosomes with identical genes

Question 10

Cancer

Answer 10

A group of disorders in which certain cells lose their ability to control both the rate of mitosis and the number of times mitosis takes place

Question 11

Meiosis

Answer 11

A form of nuclear division in which the four daughter nuclei contain half the chromosome number of the parent nucleus

Question 12

Centromère

Answer 12

The point at which the chromosomes are attached in a double-stranded chromosome