Please answer I'm BEGGING!!!!!!!!

1 answer:

3 0

The first organisms in the food chain are the producers. These are the plants. Their role is to capture energy from the sun and turn it into chemical energy that is then used by every other organism in the community.

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In a particular plant, two genes control height and flower color. tall height (t) is dominant to short height (t). yellow flower

Luda [366]

<h2>Answer:</h2>

As in a given cross two genes control the height and flower color. Tall height (T) is dominant over the short height (t) and yellow flowers (Y) are dominant over the white flower (y).

When the tall yellow flowered mated with short white flowers, the genotype of the plants can be;

TTYY × ttyy or It can be TtYy × ttyy or TTYy × ttyy or TtYY × ttyy

8 0

3 years ago

Can someone answer this pls??

Lunna [17]

Answer:

75% brown, 25% white

Explanation:

This question involves a single gene coding for color in chickens. The allele for brown color (B) is dominant over the allele for white color (b).

According to this question, a brown rooter with genotype 'BB' was crossed with a white hen (bb). The offsprings in the F1 generation will all possess the 'Bb' genotype and be brown colored. However, if these F1 offsprings are self-mated i.e Bb × Bb, the proportion of F2 offsprings will be 1BB, 2Bb, 1bb.

Since BB, Bb and Bb offsprings are Brown in color and bb is white in color, this means that the expected phenotypic appearance of the F2 offsprings will be:

¾ or 75% brown and ¼ or 25% white