Cell Cycle

Question 1

Check point between g1 and S phase

Answer 1

Restriction point where dna is checked for quality

Question 2

Main protein involved in the check point between G1/S and G2/s

Answer 2

P53

Question 3

Cyclins and cyclin-dependent kinases(CDK)

Answer 3

They rise and fall during cell cycle

Cyclins bund to CDKs, phosphorylating and activating transcription factors for the next stage in the cycle

Question 4

Reduction devision

Answer 4

Homologous chromosomes separated, generating haploid daughter cells in meiosis I

Question 5

Equational division

Answer 5

In meiosis II , separation in sister chromatids

Question 6

Thus after S phase

Answer 6

92 chromatids
46 chromosomes
23 homologous chromosomes

Question 7

What phase does crossing over occur

Answer 7

Prophase I

Question 8

Tetrads

Answer 8

4 chromatids

Question 9

Law of independent assortment

Answer 9

Inheritance of one alley has no effect on the likelihood of inheriting certain alleys of other genes

Question 10

What is the last phase in the neurotic cycle in which the cell has a diploid number of chromosomes

Answer 10

Telophase I