17 Aug Question: (8 Poin Ts) You Are A Farmer And You Currently Have 2 Populations Of True Breeding Daffodils 1) Blooms Around July 4 Th And Has White Flowers 2) Blooms Around August 1 St And Has Blue Flowers You Mate These Two Together And Get An F1 Plant That Has Blue Flowers And Blooms In August. A) Which Of These Alleles Are Dominant? B) What Are The Genotypes Of …

8 poin

ts)

You are

a Farmer and you currently have 2 populations of

True breeding

Daffodils

1)

blooms around July 4

th

and has white flowers

2)

blooms around August 1

st

and has Blue flowers

You mate these two together and get an F1 plant that has Blue flowers and Blooms in August.

a)

Which of these alleles are dominant?

b)

What are the genotypes of your initial 2 plants (define your gene and allele letters carefully

–

write those

letters in the KEY below)

Blue ___

_

___

/ White ____

_

____

: July _____

_

______/ August ____

__

_____

Plant 1 ______

_____

_

__________ Plant 2 ____

_____

_______________

c)

What is the geno

type of your F1? _________

____

___________

d)

You are interested in

making a population of True Breeding Blue Daffodils for the 4

th

of July.

What is the genotype of the plant that you want to get?

_______________

e)

Given the 3 plants you currently have (the two true breeding varieties at the top and the F1

plants you just made) how a

re you going to get the plant that you want? You can mate your

plants to each other or to themselves, but if a plant has a dominant phenotype then you

can

not visually distinguish the homozygous from the heterozygous plants.

Hint: Your solution will need two crosses. Cross one, get plants with the right phenotype (and a

mix of genotypes), Cross 2 figure out which ones have the correct genotype.

Include a

description of each cross and what you expect in terms of phenotypic out

comes.