Mendel and predictions

Question 1

How did Mendel set up his genetic experiments?

Answer 1

He used pea plants and would cut off the male reproductive parts, so they couldn’t breed by themselves, and then would pollinate the female parts with any substance he wanted.

Question 2

What were the generations?

Answer 2

P (Parental), F1, and F2

Question 3

What did Mendel always start with?

Answer 3

true breeding plants- they will produce offspring with same traits as the parent.

Question 4

what ratios did he consistently see in the F1 and F2?

Answer 4

F1- all were heterozygous, 4:0
F2- 3:1

Question 5

Explain how a test cross works

Answer 5

You cross the homozygous dominant individual with a homozygous recessive individual to see what the results would be.

Question 6

Predict genotypic and phenotypic ratios for a trait with a dominant and recessive pattern

Answer 6

genotypic- 1/4:2/4:1/4
phenotypic- 3/4:1/4

Question 7

Predict genotypic and phenotypic ratios for a trait that is codominant

Answer 7

if the parents are true-breeding:
genotypic - F1-4:0 F2: 1:2:2 phenotypic- F1-4:0 F2-3:1

Question 8

Predict genotypic and phenotypic ratios for a trait that has multiple alleles

Answer 8

It is much more complex to predict the ratios with more than one allele.

Question 9

If the offspring is 0/4 FF: 2/4Ff :2/4 ff, what are the parent genotypes?

Answer 9

Ff and ff

Question 9

True or False:
Mendel performed test crosses

Answer 9

true

Question 10

True or False:
In the F2 generation of a codominant cross, the ratio is not 3:1

Answer 10

true