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kotykmax [81]
3 years ago
6

Which happens during crossing over?

Biology
1 answer:
FrozenT [24]3 years ago
6 0
I think the answer is A hope this helps
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Multiple Allele So far we have studied traits or genes that are coded for by just two alleles. Like in rabbits, there was one al
Vesnalui [34]

Answer:

The correct answer is BB genotype and BO genotype.

Explanation:

The human blood system or ABO system shows codominance due to the multiple alleles. That means three different alleles for human blood type are present are IA, IB, and i. For easy understanding can be stated as A (for IA), B (for IB), and O (for i).

If someone has blood type B could have a genotype of either BB or BO because of the dominance of B allele on O where is If A allele present with B allele it would show co-dominance.

Thus, the correct answer is the BB genotype and BO genotype.

8 0
3 years ago
PLEASEEE HELPPPPP!!!!!!!
Anuta_ua [19.1K]

Answer:

The coral reefs of the Caribbean are thought to be under threat

Explanation:

Overfishing threatens over 60 percent of Caribbean coral reefs. Declines in coral cover and increases in algal cover have been observed across the region. This analysis identified about one-third of Caribbean reefs at high threat from overfishing pressure and about 30 percent at medium threat.

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3 years ago
after the brain receives information from the body's sensory receptors, what is the next step in responding to this information?
Bumek [7]

The sensory receptors refer to the portions of the nervous system, which sense variations in the external or internal surroundings. The sensory input can be in various forms, comprising taste, pressure, light, sound, pH of blood, or levels of hormones, which are transformed into a signal and are transmitted to the brain or spinal cord.  

In the sensory centers of the brain, the barrage of information is integrated and a response is produced. The response, that is, a motor output refers to a signal conducted towards organs via motor neurons, which then transforms the signal into some kind of action, like changes in heart rate, movement, discharge of hormones, and others.  


7 0
3 years ago
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An issue for chesapeake planters was that the effect of tobacco farming on soil led to:
klasskru [66]

the answer for apex is

A need for more land

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What cells produce the hormone testosterone ?
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Leydig cells

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