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AQA DNA and genetics 1 2018 Flashcards | StudBud

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Which feature does NOT describe asexual reproduction

What does selective breeding mean?

AQA DNA and genetics 1 2018

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Answers

1
What does selective breeding mean?
Humans selecting animals to breed for their colour only
Humans selecting animals to breed for their characteristics
Animals selecting who to breed with
Changing the DNA of an animal for our use
2
Which feature does NOT describe asexual reproduction
The offspring are genetically identical
2 parents needed
The offspring are clones
Occurs in bacteria
3
Which is NOT a reason plants may be selectively bred for?
Their size
Their personality
The resistance to disease
Their appearance
4
Which of the following is a dominant trail
Blonde hair (b)
green eyes (e)
Cystic fibrosis (c)
Polydactyly (P)
5
Name a good reason for sexual reproduction
It's slower
Decreases the variety in a population
It's faster
Increases the variety in a population
6
Which of the below is someone's genotype?
Blue eyes
Brown hair
Bb
Blonde hair
7
If a person with brown hair is BB, what will a person with blonde hair's genotype be?
Bb
bb
BB
bB
8
What does DNA code for?
Proteins
Bases
Sugars
Fats
9
What is the shape of DNA called?
Single helix
Helix
Double helix
Triple helix
10
Which of the following animals is bred for personality by humans
Sheep
Cows
Dogs
Chickens