genetics Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

where are chromosomes located?

A

in the nucleus of celss

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

what is a females sex-chromosome?

A

XX

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

what is a males sex-chromosome?

A

XY

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

how many chromosomes in a normal human

A

23 pairs

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

what is DNA?

A

nucleic acid, consisting of nucleotides

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

what is T (Thymine) paired with?

A

A (Adenine)

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

what is G (Guanine) paired with?

A

C (Cytosine)

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

what is DNA made up of?

A
  • 5-carbon sugar called deoxyribose, a phospate group, an a nitrogenous base.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

difference between autosomes and sex-chromosomes

A

autosomes are all chromosomes other than sex chromosomes

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

what does reccesive gene mean?

A

less likely to be carried through

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

what does dominant gene mean?

A

most likely to be carried through (CAPITAL LETTER)

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

effects of mutation

A

Can have an affect on many genes along the chromosome

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

what happens if a human has an extra chromosome?

A

causes down syndrome

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

mitosis

A

the process of making new body cells

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

meiosis

A

creates egg and sperm cells

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

what are autosomes

A

every chromosomes apart from sex chromosomes

17
Q

what are sex chromosomes

A

your gender

18
Q

what is pedigrees used for

A

to show patterns of inheritance through generations of families

19
Q

what is the opossite of A

A

T

20
Q

what is the opposite of C

A

G