Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MCBG > Session 1-4: DNA & Cell Cycle > Flashcards

Session 1-4: DNA & Cell Cycle Flashcards

1
Q

What is the complementary DNA sequence for 5’GGGATTCC?

A

5’GGAATCCC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the three phases of the cell cycle?

What happens during these phases?

A

Interphase-interval between divisions
Mitosis-division of chromosomes
Cytokinesis- division of cytoplasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What happens during Prophase of Mitosis?

A

Chromosomes condense and become shorter

Nuclear membrane breaks down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What happens during Metaphase of mitosis?

A

Chromosomes move the the equator of the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What happens during Anaphase of mitosis?

A

Centromeres divide

Chromosomes move to opposite poles of the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What happens during Telophase of mitosis?

A

Chromosomes decondense

New nuclear envelope is formed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

In a strand of DNA the 1’ carbon of the nucleotide is linked to what?

A

The base

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

In a strand of DNA the 5’ Carbon of the nucleotide is linked to what?

A

A phosphate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In a double strand of DNA, complementary base pairs are held together by what?

A

Hydrogen bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How many hydrogen bonds are there between the complementary bases, Adenine and Thymine?

A

There are 2 hydrogen bonds between A and T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How many bonds are there between the complementary base pairs, Cytosine and Guanine?

A

There are 3 hydrogen bonds between C and G

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Nucleotides are joined by (1)_____________________ bonds during a (2)_________________ reaction.

A

(1) Phosphodiester

(2) Condensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

During meiosis diploid cells divide to produce ______ daughter cells, each with ______ chromosomes.

A

Haploid

23

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Two round of division during meiosis ensures what?

A

Precise reduction in chromosome number therefore maintaining the same number of chromosomes from generation to generation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Genetic variation is produced in which two ways?

A

1) Random assortment of maternal/paternal chromosomes

2) Crossing over of chromosome segments between homologous chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When spermatocytes undergo meiosis, they produce how many spermatids?
Are they Haploid or diploid?

A

4

Haploid

17
Q

Do homologous chromosomes have the same DNA sequence?

Do they have the same genes?

A

Yes and Yes

18
Q

Do homologous chromosomes have the same variants of genes? What are these variants called?

A

Yes they can do

They are called alleles

19
Q

Do sister chromatids have the same DNA?

Do they have identical alleles?

A

Yes they do

Yes they have identical alleles

20
Q

What makes non-sister chromatids different to sister chromatids?

A

Non-sister chromatids have the same genes but not necessarily the same alleles, sister chromatids have the same genes and the same, identical alleles.

21
Q

What process swaps alleles around?

A

Crossing over

MCBG (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions