Mitosis, Meiosis, DNA Replication, DNA Structure Flashcards Preview

Uncategorized > Mitosis, Meiosis, DNA Replication, DNA Structure > Flashcards

Flashcards in Mitosis, Meiosis, DNA Replication, DNA Structure Deck (58)
Loading flashcards...
1

Describe the events where chromosomes exchange segments

First synapsis must occur so the homologous chromosomes can get close to each other. Then crossing over occurs where chromosomes exchange segments. We can see this at the chiasmata, where crossing over hasoccurred. This finally results in recombinants.

2

First synapsis must occur so the homologous chromosomes can get close to each other. Then crossing over occurs where chromosomes exchange segments. We can see this at the chiasmata, where crossing over hasoccurred. This finally results in recombinants.

Describe the events where chromosomes exchange segments

3

What is a Haplo

Haploid Sperm o

4

Haploid Sperm o

What is a Haplo

5

When does cell divide into approximately 2 equal halves during Mitosis

Cytokinesis

6

Cytokinesis

When does cell divide into approximately 2 equal halves during Mitosis

7

During which phase of interphase does DNA replicate

Synthesis= S phase

8

Synthesis= S phase

During which phase of interphase does DNA replicate

9

During which phase does the cell prepare for division by rapidly producing proteins, and repair damages

G2

10

G2

During which phase does the cell prepare for division by rapidly producing proteins, and repair damages

11

G stands for...

Gap

12

Gap

G stands for...

13

what are chromosomes?

what are double chromosomes

sister chromatids

1 set of genetic info=1 chromosome

1 double chromosome= 2 identical chromatids held together by centromere

chromatids in the double chromosome

14

1 set of genetic info=1 chromosome

1 double chromosome= 2 identical chromatids held together by centromere

chromatids in the double chromosome

what are chromosomes?

what are double chromosomes

sister chromatids

15

In the following picture, point out interphase, telophase, anaphase, metaphase, and prophase cells:

Interphase: 1

Prophase: 2, 3, 4, 5,

Metaphase: 6, 7

Anaphase; 8, 9

Telophase/ cytokinesis: 10

16

Interphase: 1

Prophase: 2, 3, 4, 5,

Metaphase: 6, 7

Anaphase; 8, 9

Telophase/ cytokinesis: 10

In the following picture, point out interphase, telophase, anaphase, metaphase, and prophase cells:

17

A:

T:

G:

C:

ATGCGTACGC

T

A

C

G

Chose 1

TACGCATGCG

TTACGGCATC

TTAAAGCCTCT

ATCGATCGAAGG

18

T

A

C

G

Chose 1

TACGCATGCG

TTACGGCATC

TTAAAGCCTCT

ATCGATCGAAGG

A:

T:

G:

C:

ATGCGTACGC

19

Define Cell division

When 1 cell divides into 2 identical daughter cells

20

When 1 cell divides into 2 identical daughter cells

Define Cell division

21

Histones

Protein around which DNA is wrapped around, so that it is organized and neat

22

Protein around which DNA is wrapped around, so that it is organized and neat

Histones

23

Chromatin

DNA + histones

24

DNA + histones

Chromatin

25

Define Mitosis

Centromere

cell Cycle

cytokinesis

division of genetic material of a parent cell into 2 daughter cells

part of a chromosome where spindle fibers attach

an orderly sequence of events that extends from the time a cell first arises until it divides itself

division of rest of cell and cytoplasm into 2 daughter cells along with organelles, cleavage and cell plate

26

division of genetic material of a parent cell into 2 daughter cells

part of a chromosome where spindle fibers attach

an orderly sequence of events that extends from the time a cell first arises until it divides itself

division of rest of cell and cytoplasm into 2 daughter cells along with organelles, cleavage and cell plate

Define Mitosis

Centromere

cell Cycle

cytokinesis

27

Describe Interphase

cell growth

production of molecules and new organelles

by G2, two centrosomes exist and DNA has replicated

28

cell growth

production of molecules and new organelles

by G2, two centrosomes exist and DNA has replicated

Describe Interphase

29

Describe Prophase

chromosomes form

nuclear envelope disappears

centromeres exist

centrosomes move away from each other, mitotic spindle appears as microtubules projecting from centrosomes.

spindle microtubules can now reach centromeres

some attach to chromosomes

others attach to opposite microtubules

spindle moves chromosomes to center of cell

30

chromosomes form

nuclear envelope disappears

centromeres exist

centrosomes move away from each other, mitotic spindle appears as microtubules projecting from centrosomes.

spindle microtubules can now reach centromeres

some attach to chromosomes

others attach to opposite microtubules

spindle moves chromosomes to center of cell

Describe Prophase

Decks in Uncategorized Class (119):