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Softa [21]
3 years ago
6

Ralph wanted to breed a pea plant that produced only purple flowers. He continued to breed purple-flower producing pea plants to

gether over six generations. The results of Ralph's selective breeding are shown above. What did the selective breeding do to the population of pea plants?
A.
decreased its genetic diversity
B.
caused a pea plant to exhibit a new characteristic
C.
caused a new species of pea plant to form
D.
increased its genetic diversity

The answer is A
Biology
1 answer:
Reptile [31]3 years ago
5 0
Is this a question? Just wondering because it seems you already have the answer to it.
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During metamorphosis, a tadpole's tail is reduced in size by the process of ______. A. regeneration B. apoptosis C. oxidative ph
jolli1 [7]

The process of apoptosis, I believe, is when the tadpole's tail is reduced in size during metamorphosis.

In most animal phyla, metamorphosis actually takes place in conjunction with morphological, ecological, and physiological changes.

Marine invertebrates' larva behaves as a drifting tiny creature in the ocean, expanding its habitat distribution to find the best location for its survival.

When muscle cells undergo apoptosis, which is the final stage of their metamorphosis, they are split into membrane-bound muscle fragments and consumed by macrophages.

As a tadpole becomes a frog, apoptosis occurs. The cells in its tail are induced and it will be lost.

<em />

<em>Image: Metamorphosis of a frog

</em>Learn which protein is responsible for initiating apoptosis in the cytosol of the target cell: brainly.com/question/28275150

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7 0
1 year ago
Hemoglobin is a protein that carries oxygen around you body. What is hemoglobin made from? A. Nucleic Acids b.monosaccharides c.
Rasek [7]
The answer is Amino Acids
5 0
3 years ago
True/False. All mutations are bad.​
olchik [2.2K]

False.

There are several good mutations that have ensured the survival of species. Typically helpful mutations help the creature adapt to its environment or protect itself from predators.

I hope this helps! :)

4 0
2 years ago
Read 2 more answers
What is a fixed allele
Oksana_A [137]

A fixed allele is an allele that is the only variant that exists for that gene in all the population

8 0
3 years ago
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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>

<em>Brown Body Color</em> (Dominant) : B

<em>Black Body Color</em> (Recessive) : b

<em>Red Eye Color</em> (Dominant) : R

<em>Brown Eye Color </em>(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.


<em>Refer to the attached picture for clarity.</em>


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


4 0
3 years ago
Read 3 more answers
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