Questions (UNIT 2)

Question 1

What’s the principle of dominance?

Answer 1

2 different alleles in a trait are present, the dominant allele will mask the effect of recessive allele.

Question 2

What’s is the principle of probability?

Answer 2

The likelihood that a certain event will happen.

Question 3

What’s the law of independent assortment?

Answer 3

each pair of alleles segregates into gametes independently of one another.

Ex: A pea plant with genotype YyRr makes four gametes (YR, Yr, yR, yr) because the alleles separate independently.

Question 4

What’s Codominance?

Answer 4

the resulting offspring show characteristics of both
parents.

Question 5

What’s complete dominance?

Answer 5

when one trait completely hides the other. You only see the dominant trait, even if there’s one copy of it.

Question 6

What’s Charles Darwin’s 5 main points?

Answer 6

Variation
Struggle for existence
Survival of the fittest
Speciation
Overproduction

Question 7

What are the 3 main types of adaptations?

Answer 7

Structural
Physiological
Behavioural

Question 8

What’s is artificial selection?

Answer 8

When humans breeds animals/plants for specific traits like size, color, and behaviour.

Question 9

What are the 7 ways scientists can determine evidence of evolution?

Answer 9

Fossil record,
Geographic distribution,
By example,
Anatomy,
Comparative Embryology, Biochemistry
DNA