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laila [671]
3 years ago
13

Crossing-over can happen during which stage?

Biology
1 answer:
Andrew [12]3 years ago
4 0
It occurs between prophase one and metaphase one

I hope this helps!
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Are species in the same family more or less closely related than species in the same class?
katrin [286]
The classification is in this order: Kingdom, Phylum, Class, Order, Family, Genus Species. 
The kingdom is the largest group, it contains the largest number of organisms who are the least related.
The species is the smallest group, it contains the least number of organisms who are closely related.
As you go down, from "Kingdom", species become more closely related.
So species in the same family are MORE closely related than species in the same class.
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3 years ago
SOMEONE PLEASE HELP ME!!!!!
mash [69]
I think it would be A. Because DNA always has your genes

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3 years ago
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In a plant called jimsonweed, flowers can be white or purple. A jimsonweed plant with white flowers is crossed with a jimsonweed
STALIN [3.7K]

<u>Answer:</u>

Although statements are not given in the question, we could make the most possible deduction as follows:

The allele for purple flowers is dominant whereas allele for white flowers is recessive.

<u>Explanation:</u>

According to the question,

  1. Purple flower plant was crossed with white flower plant.
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Here we have one possibility that both parents were homozygous but in their own traits. <u>Purple flower</u> plants were "PP" and white <u>flower plants</u> were "pp" So, the <u>first progeny</u> (direct offsprings) would have "Pp". So, as per considerations, purple is dominant allele which will mask the recessive allele thus defining the color of all offsprings as purple. However, further cross of their generation will definitely end up into purple and white flowers (3:1) but this condition is not mentioned in the statement.

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4 years ago
The flow of energy within an ecosystem refers to
Ksenya-84 [330]

It refers to Calorific flow

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How can scientists use owl pellets to study the skeletal systems of small mammals in a specific ecosystem
Allushta [10]

Answer:

They use them so that they can see what type of organisms live there.

Explanation:

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