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Lyrx [107]
2 years ago
11

Under what conditions might populations of a short type of sunflower be identified as a new species

Biology
1 answer:
fgiga [73]2 years ago
6 0
<span>Populations of a short type of sunflower are identified as a new species under the conditions that </span>they are unable to breed with the sunflowers of the original population.
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Which substance mixes with natural rainwater to form acid rain?
julia-pushkina [17]
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3 years ago
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The following F2 phenotypic data was obtained from a Drosophila testcross using an F1 offspring. Assume red eye and brown body a
dmitriy555 [2]

Answer:

The genotype of the F1 was wy+/w+y.

Explanation:

One of the given options has a typo: the red eye-brown body offspring count should be 56 instead of 561.

<u>We have two genes with two alleles each:</u>

Red eyes (w+) is dominant over white eyes (w).

Brown body (y+) is dominant over yellow body (y).

The phenotypes of the F2 tesulting from a test cross (F1 x wy/wy) are:

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If the genes w and y are linked, two phenotypes in the F2 will be much more abundant than the other two. Recombination during meiosis is a rare event, so the most abundant phenotypes are the parentals (the ones present in the F1 parent).

Every individual in the offpsring has a <em>wy</em> chromosome, as this was the gamete inherited from the test cross individual.

In this case, the most abundant gametes are wy+ and w+y, so the genotype of the F1 was wy+/w+y.

Notice how when recombination occurs in the F1 parent, the recombinant gametes appear: wy and w+y+, which are the less abundant in the F2 progeny.

8 0
3 years ago
Which cells in your body undergo cellular respiration.
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Answer:

it is a

aerobic respiration

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Which of the following would a Romanticism author most likely write about?
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refrain from using or disposing of (something); retain for future use.

Explanation:

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