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3 years ago

Select the correct answer.

Biology

2 answers:

jarptica [38.1K]3 years ago

8 0

Answer:

B. Gravitational potential energy

Explanation:

An easy way to remember this is if something has the potential to fall from height, that medium will more than likely have gravitational potential energy.

Elastic EP is more so for when materials bend and warp, think of the energy in a stretched rubber band before you let it go

Vibrational energy is more along the lines of atoms and molecules which are constantly vibrating

Radiant energy is energy of electromagnetic waves, such as sunlight or radiation, etc

Aliun [14]3 years ago

4 0

B. Gravitational potential energy

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Two fruit flies that are heterozygous for body color and eye color are crossed. Brown body color is dominant to black body color

Debora [2.8K]

Hi!

<h3>Let us assume that the following key:</h3>

Brown Body Color (Dominant) : B

Black Body Color (Recessive) : b

Red Eye Color (Dominant) : R

Brown Eye Color (Recessive) : r

To predict all possible phenotypes for this cross, you need to make a Punnet Square, which makes it easier to solve dihybrid crosses (crosses involving two different traits).

The concept of this is taking each combination of the traits from the parent (BR, Br, br, bR), and crossing it with such combinations of the other parent.

Refer to the attached picture for clarity.

This cross will yield a phenotypic ratio of

9 : 3 : 3 : 1

9 Dominant for both traits

3 Dominant for Eye Color, and Recessive for Body Color

3 Dominant for Body Color, and Recessive for Eye Color

1 Recessive for both traits

<h3>All Genotypes with Corresponding Phenotype:</h3>

BBRR - Brown Body, Red Eyes

BBrR - Brown Body, Red Eyes

BBRr - Brown Body, Red Eyes

bBRR - Brown Body, Red Eyes

BbRR - Brown Body, Red Eyes

BBrr - Brown Body, Brown Eyes

bBrR - Brown Body, Red Eyes

bBRr - Brown Body, Red Eyes

BbrR - Brown Body, Red Eyes

BbRr - Brown Body, Red Eyes

bBrr - Brown Body, Brown Eyes

Bbrr - Brown Body, Brown Eyes

bbRR - Black Body, Red Eyes

bbrR - Black Body, Red Eyes

bbRr - Black Body, Red Eyes

bbrr - Black Body, Brown Eyes

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