Red kernel color in wheat results from the presence of at least one dominant allele of each of two independently segregating genes . Kernels on rr bb plants are white, and the genotypes R— bb and rr B— result in brown kernel color. Suppose that plants of a variety that is true breeding for red kernels are crossed with plants true breeding for white kernels produced F1 were allowed to selfing .what are F2 phenotype ratio ?

Events

Protein

Phases

A. Cohesins are loaded onto chromosomes

I. Mei-S332/Shugoshin

 a. G1

B. Cohesins can dissociate from the DNA

II. Polo kinase and Aurora B kinase

b. G2

C. Prevents cohesin phosphorylation, and hence dissociation

III. Scc2-Scc4

c. S

D. Phosphorylation of cohesins

IV. Pds5-Wapl

d. M

Events

Protein

Phases

A. Cohesins are loaded onto chromosomes

I. Mei-S332/Shugoshin

 a. G1

B. Cohesins can dissociate from the DNA

II. Polo kinase and Aurora B kinase

b. G2

C. Prevents cohesin phosphorylation, and hence dissociation

III. Scc2-Scc4

c. S

D. Phosphorylation of cohesins

IV. Pds5-Wapl

d. M

Events

Protein

Phases

A. Cohesins are loaded onto chromosomes

I. Mei-S332/Shugoshin

 a. G1

B. Cohesins can dissociate from the DNA

II. Polo kinase and Aurora B kinase

b. G2

C. Prevents cohesin phosphorylation, and hence dissociation

III. Scc2-Scc4

c. S

D. Phosphorylation of cohesins

IV. Pds5-Wapl

d. M

Column I

Column II

A. Monotelic Attachment

I. When sister kinetochores attach to microtubules emanating from opposite spindle poles, they are stably attached.

B. Syntelic Attachment

II. When one kinetochore attaches to microtubules emanating from two opposite spindle poles.

C. Amphitelic Attachment

III. When both sister kinetochores attach to microtubules emanating from the same spindle pole.

D. Merotelic Attachment

IV. When only one of the two sister kinetochores attaches to microtubules.