)consider a pea plant- it has a gene controlling seed color- yellow vs green; another gene controlling seed texture-smooth vs wrinkled. a true breeding smooth green plant is crossed to a true breeding wrinkled yellow. all the f1 progeny were smooth yellow. the f1 generations were self-fertilized. assume the two genes (seed color and seed texture) are very tightly linked. in the f2 what is the expected ratio of the phenotypes- smooth & yellow: smooth & green: wrinkled & yellow: wrinkled & green 9: 3: 3: 1 1: 0: 1: 0 b

Yellow smooth  - 9

Yellow wrinkle - 3

Green smooth- 3

Green Wrinkle - 1

Explanation:

Let the green color of the seed be depicted by "G" and the yellow color of the seed be depicted by "g"

Let the smooth the seed be depicted by "R" and wrinkled seed be depicted by "r"

F1 cross -  

true breeding smooth green plant ( RRGG) and true breeding wrinkled yellow (rrgg)

F1 gamete will be RG, RG, rg, rg

F1 offspring will be RrGg , Thus all F1 offspring will be heterozygous smooth and yellow.  

Thus,  R is dominant over r and g is dominant over G

F2 Generation –  

RrGg x RrGg

Gametes will be RG, Rg, rG, rg

RG         Rg          rG           rg

RGRRGGRRGgRrGGRrGg

RgRRGgRRggRrGgRrgg

rGRrGGRrGgrrGGrrGg

rgRrGgRrggrrGgrrgg

R is dominant over r and g is dominant over G

Genotypes are –  

RRGG - 1  (Smooth Green)

RRGg-2  (Smooth yellow)

RrGG-2  (Smooth Green)

RrGg-4  (Smooth yellow)

RRgg- 1  (smooth yellow)

Rrgg – 2  (Smooth yellow)

rrGG – 1  (wrinkled Green)

rrGg – 2  (Wrinkled yellow)

rrgg – 1  (wrinkled yellow)

Yellow smooth  - 9

Yellow wrinkle - 3

Green smooth- 3

Green Wrinkle - 1

organisms that are both used in toothpaste as well as cause malaria are protista and monera.

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

mark as brainlest

gokuson