Chapter 12

Question 1

SEQ mendels work

Answer 1

Crossed true breathing with pea plants (Cheap, easy to grow, and many offspring)

Question 2

CC BIH (Blending Inheritance Hypo)(Blue + Red = Purple)

Answer 2

Blended Purple and White flowers (P Gen)
Result: All Purple Flowers (F1)

Blended All Purple Flowers (F1 Gen)
Result: 75% P and 25% W (F2)

75% P and 25% W (F2) (Lost White Came back)

Final: Saw 3:1 Ratio, and Hypo rejected because there was no blending of colors

Question 3

CC components mendels model(Passed down)

Answer 3

Particulate inheritance: Determined by heritage factors (gene)
Explained the 3:1 Ratio

Produced the 4 concepts:
1. Alleles are alternatives of genes
2. 2 alleles inherited (mom and dad)
3. Dominant and recessive alleles
4. Mendel’s Law

Question 4

Mendel’s Work (4)

Answer 4

1. Alleles are alternatives of genes
2. 2 alleles inherited (mom and dad)
3. Dominant and recessive alleles
4. 2 principles of heredity

Question 5

1. Alleles are alternatives of genes

Answer 5

Each gene is at specific locus (HC)

Question 6

2. 2 alleles inherited (mom and dad)

Answer 6

Homozygous (true breeding P Gen) = Mitosis

Heterozygous (Different from parents F1) = Meiosis

Question 7

3. Dominant and recessive alleles

Answer 7

2 alleles: Dominant or Recessive

Dominant determines Phenotype

Question 8

4. Mendel’s Law (2)

Answer 8

LOS: each gamete gets one allele (Separation)
Monohybrid Cross, Ab x Ab, and 3:1 Ratio

LOIA: the action of random sorting (Crossing)
Dihybrid Cross, Abab x Abab, and 9:3:3:1 Ratio

Question 9

Apply probability rule (2)

Answer 9

Addition Rule
Multiplication Rule

Question 10

Addition Rule

Answer 10

Exclusive events
P(this) or P(that)

Draw the Punnett Square

Question 11

Multiplication Rule

Answer 11

Inclusive events
P(this) and P(that)

P(b from mom) and P(b from dad)
(½) x (½) = 1/4 = 25%