If there are class B mutations in the flower development genes of Arabidopsis thaliana, then determine the structures present in each whorl, beginning with the outermost whorl and ending with the inner most whorl. If a whorl does not contain the normal structure for that whorl as found in a normal flower, then choose the word "mutant".

a. Whorl #1 (outermost) Answer 1Choose...

b. Whorl #2 Choose...stamens mutant carpels petals sepals

c. Whorl #3 Choose...stamens mutant carpels petals sepals

d. Whorl #4 (innermost) Choose...stamens mutant carpels petals

Whorl-1- petals

Whorl-2- petals (mutant)

Whorl-3- carpels (mutant)

Whorl-4- carpels

Explanation:

ABC model of flower explains the role of various genes in the formation of a flower from the shoot. Each gene forms a particular structure of a flower in the following manner:

1. A gene -sepals. (Whorl-1)

2. A + B- Petals (Whorl-2)

3. B+ C - stamens (Whorl-3)

4. C- carpels. (Whorl-4)

If a flower lacks the B gene, the effect will be observed in the phenotype in which B gene is involved that is in the formation of petals and stamens or whorl 2 and whorl 3.

The flower will produce

whorl-1- petals

Whorl-2- petals (mutant)

Whorl-3- carpels (mutant)

Whorl-4- carpels

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: