Mitosis And Mieosis

Question 1

DNA

Answer 1

Deoxyribonucleic acid

Question 2

Histones

Answer 2

Protien found in chromosomes
Keeps DNA organized
Wraps around in order to fit nucleus

Question 3

Chromosomes

Answer 3

DNA and its assorted protiens

Question 4

DNA condenses into

Answer 4

Chromosomes

Question 5

Centromere

Answer 5

The specialized constricted region
Where two sister chromatids are joined

Question 6

Homologous

Answer 6

Carry the same gene at the same location
Homologous pairs are similar but not identical
Different alleles for the same gene

Question 7

Gene

Answer 7

A sequence of DNA that encodes for a particular protien

Question 8

Allele

Answer 8

Different form of the same gene
Ex: eye colour

Question 9

Diploid

Answer 9

A cell that contains homologous pairs of chromosomes
Human somatic cells= 2n=46

Question 10

Haploid

Answer 10

A cell that contains unpaired chromosomes
Human gametes = n=23

Question 11

M phase

Answer 11

Cell division

Question 12

Two processes of cell division

Answer 12

Mitosis and cytokinesis

Question 13

Mitosis

Answer 13

Genetic material and contents of the nucleus are divided

Question 14

Cytokinesis

Answer 14

Cynoplasm and originelles of the cells separate into two

Question 15

Apoptosis

Answer 15

Programmed cell death

Question 16

Meiosis

Answer 16

Process that produces 4 haploid gametes from one diploid cell

Question 17

Reduction division

Answer 17

Daughter cells have half a he number of chromosomes

Question 18

Synapsis

Answer 18

The pairing into tetrads, chromatids intertwine, exchange of segments (crossing over)

Question 19

Non disjunction

Answer 19

Occurs during anaphase 1 or 2
Homologous chromosomes or sister chromatids don’t separate as they should

Question 20

Sporophyte

Answer 20

Undergoes meiosis to produce haploid spores
Each spore grows into a plant body
(Gametophyte) which produces both male and female gametes

Question 21

Telomeres

Answer 21

Tips of cells
Shorten until cell division stops