B7: Variation Flashcards

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

define species

A

organisms that can interbreed with each other

+ produce fertile offspring

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

define population

A

all of the organisms of one species found in the area

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

define natural selection

A

whereby some organisms/variants in a population
are preferentially selected for
and other, selected against

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

what causes genetic variation

A

mutation

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

why are diff characterisitics good

A

some characterisitcs can make individuals better suited to ennvironment
so more likely to survive+ reproduce

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

what happens if the advantageous allele is inherited

A

allele that codes for characterisitc may be passed onto offspring
giving offspring selective adavantage over others

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

what is selective advantage

A

organism/variant with advantage is somehow better suited to environment
compared to other individuals

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

define evolution

A

when advantageous allele becomes more popular
over time
in population
so increases in frequency
and disadvantageous allele is less common

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