11.1

Question 1

What have two of the same allele?

Answer 1

homozygous

Question 2

What have two different alleles?

Answer 2

heterozygous

Question 3

homozygous and heterozygous are examples of this.

Answer 3

genotype

Question 4

The visible trait that alleles cause.

Answer 4

phenotype

Question 5

Crossing an individual with a dominant phenotype but unknown genotype with an individual that has the recessive phenotype and genotype is called?

Answer 5

test cross

Question 6

It takes one allele to cause this phenotype.

Answer 6

dominant

Question 7

you must only have copies of this allele to have this phenotype.

Answer 7

recessive

Question 8

If a heterozygous individual has a trait different from homozygous individuals what is the trait?

Answer 8

codominant

Question 9

Offspring all have yellow seeds

Answer 9

YY x yy
YY x YY
YY x Yy

Question 10

Offspring have all green seeds

Answer 10

yy x yy

Question 11

2/4 offspring have yellow seeds : 2/4 offspring have green seeds

Answer 11

Yy x yy

Question 12

3/4 offspring have yellow seeds : 1/4 offspring have green seeds

Answer 12

Yy x Yy

Question 13

How did Mendel set up his genetic experiments?

Answer 13

He cross over pea plants.

Question 14

What were the generations, what did he always start with, what ratios did he consistently see in the F1 and F2?

Answer 14

F1 4/4 heter
F2 1/4 Dom, 2/4 heter 1/4 homo.