Week 5 Cell Division, Genes and Inheritance

Question 1

Chromatin?

ch- material. Makes up chromosomes.

Answer 1

chromosomal

Question 2

Chromosome?

D- and a- proteins

Answer 2

DNA

associated

Question 3

Sister chromatids?

Pair of c- joined at the c-

Answer 3

chromatids

centromere

Question 4

Homologous chromosomes?

T- copies of each chromosome. The copies are similar, but not i-

Answer 4

Two

identical

Question 5

Chromatid?

C- of a chromosome f- by DNA r-

Answer 5

Copy
formed
replication

Question 6

What is Transcription in Gene expression?

DNA acts as template for s- of R-

M- RNA is produced

Answer 6

synthesis
RNA
Messenger

Question 7

What is Translation in Gene expression?

Answer 7

Ribosomes move along the RNA molecule and read the sequence of nucleotides

Question 8

Cell division in Eukaryotes

Mitosis?
S- cells (b- cells)
G- & D-

Answer 8

Somatic
body
Growth
Development

Question 9

What are the two main phases of the cell cycle?

I- & M- phase

Answer 9

Interphase

Mitotic

Question 10

Whats part of the interphase?

G1 (f- gap) phase
S (s-) phase
G2 (s-) phase

Answer 10

first
synthesis
second

Question 11

Whats part of the Mitotic phase?

M-: nuclear division
C-: division of c-

Answer 11

Mitosis
Cytokinesis
cytoplasm

Question 12

What’s the resting phase?

Answer 12

Cell not dividing

Question 13

Whats the Synthesis phase?

Answer 13

DNA replication to produce sister chromatids

Question 14

What are the 2 stages of Mitosis?

Answer 14

Animals - Cleavage furrow forms between the two nuclei

Plants - Cell plate forms between the two nuclei

Question 15

Physical differences of Cytokinesis in Plants?

Lack c- and c-
Spindle is barrel shaped

Answer 15

centrosomes

centrioles

Question 16

What does RNA stand for?

Answer 16

Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes

Question 17

Meiosis?

Meiosis is a special type of cell d- that reduces the c- number by half, creating four h- cells,

Answer 17

Division

Chromosome

Haploid

Question 18

Mitosis?

Answer 18

mitosis is a part of the cell cycle when replicated chromosomes are separated into two new nuclei.

Question 19

Cell division in Eukaryotes

Meiosis?

G- (sex cells)
R-

Answer 19

G- (sex cells)

Reproduction

Question 20

Link between DNA and inheritance?

Answer 20

One chromosome is inherited from the mother, and one is inherited from the father. These are long threads of DNA, which are made up of many genes.