2.4 Understanding Inheritance

Question 1

What is the cross breeding that only monitors 1 trait?

Answer 1

Monohybrid

Question 2

What the the term for the type of appearance of an organism? (How the genes are expressed physically)

Answer 2

Phenotype

Question 3

What is the term for the type of genetic makeup?

Answer 3

Genotype

Question 4

☄️Why are P generation and F1 different in a monohybrid?

Answer 4

Because the offspring of F1 organisms (which are F2) have a 3:1 ratio of phenotypes (the appearance of the recessive gene)

Question 5

What is the law of segregation? (Simple definition)

Answer 5

Traits are determined by pairs of alleles that segregate during meiosis during meiosis so that each gamete has one.

Question 6

What is the ph

Question 7

What is true breeding?

Answer 7

Organisms that have the same traits generation after generation. (Think *pure-bred)

Question 8

What is a classic phenotype ratio of F2 (2nd gen offspring) of dihybrids?

Answer 8

9:3:3:1

Question 9

What is the law of independent assortment?

Answer 9

During gamete formation, two alleles line up independent of all traits

Question 10

What’s the name of a pair of identical alleles for a trait

Answer 10

It’s a homozygous genotype (ex: TT or tt)

Question 11

What does it mean if a pair of alleles are different for a trait

Answer 11

It is a heterozygous (ex: Tt)
(the dominant trait will always be the one that is displayed)