Cell Cycle Topic 4 Flashcards Preview

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Flashcards in Cell Cycle Topic 4 Deck (22):
1

What is a homologous chromosome?

a chromosome pair 1 from each parent

2

What is a gene?

unit of herdity

3

What occurs during interphase?

protein synthsis within the cells

4

What occurs during the G1 phase?

Growth and metabolism

5

What occurs during the s-phase?

chromosomes replicate bbut are still present as chromatin

6

When does S-Phase occur?

Always occurs before cell divisoin

7

When are the kinetochoress produced?

During S-phase

8

What occurs during the G2 phase?

Growth and metabolism.
Enzymes and other proteins neeeded for cell divions

9

What are parts of mitotic phase?

-Prophase
-Mataphase
-Anaphase
-Telophase

10

What is the division of of cytoplam called?

Cytokinesis

11

What are the similarities from mitosis and meiosis?

-Prophase I II
-Chomosomes condense
-Spindle apparatus forms
-Kinetecore microtubules capture chromosomes

12

When is the pre embryonic period?

first 2 weeks

13

What undergoes rapid mitotic cell divisions that is diploid?

Zygote

14

What happens in the first 72 hours of implantation?

Morula is formed

15

How many cells does the morula contain?

16-32

16

True or false is the morula the same size as the zygote>

true

17

/In early dev what happens within the first 5 days

Blastocyst created

18

What does the inner cell mass differentiate to?

embryo

19

What does the trophoblast differentiate to?

the chlorion

20

when does implantation occur?

5-7 days after fertilization

21

What does the epiblast differentaite to?

Amion

22

What are the 3 germ layers in the aminion?

-Ectoderm
-Mesoderm
-Endoderm