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VikaD [51]
3 years ago
6

Which of the following are threats to biodiversity?

Biology
2 answers:
adelina 88 [10]3 years ago
6 0

altering habitats and pollution

zysi [14]3 years ago
5 0

altering habitats and pollution

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According to the Hardy-Weinberg principals,which of the following can prohibit genetic equilibrium?
Lyrx [107]
Some of the major factors which affect the genetic equilibrium and induce the variability in population are as follows: (A) Mutations (B) Re-combinations during Sexual Reproduction (C) Genetic Drift (D) Gene Migration (Gene Flow) (E) Natural Selection.<span />
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Prader-Willi syndrome is caused by a mutation in an autosomal maternally imprinted gene. Label the following statements as true
Firlakuza [10]

The PWS or the Prader-Willi syndrome refers to a rare genetic disorder in which the chromosome 15 gene are either unexpressed or deleted on the paternal chromosome. The paternal origin of the genetic material, which is influenced in the syndrome is essential as the specific region of chromosome 15 taking part is subject to parent of origin imprinting, signifying that for a number of genes in this region, only one copy of the gene is articulated, while the other is silenced due to imprinting.

This signifies that the majority of the individuals exhibit one functioning and one silenced set of these genes. While the individuals with the syndrome exhibits a non-functioning set and a silenced set. The disease is completely autosomal, therefore, it will not predict the sex of the offspring. Also, imprinting is on maternal copy, therefore, if the affected individual is male, it will pass on the mutated copy only in 50 percent of its gametes, and a non-functioning copy to the remaining 50 percent of the gametes. Thus, all of his offspring will exhibit PWS or will get affected.

In other case, if the affected person is female, it will pass on the mutated copy only in 50 percent of its gametes and a non-functioning copy to the remaining 50 percent of the gametes and offspring will take on the functioning copy from its male parent, therefore, all of her offspring will be normal.

Thus, the given statements will be:

1. Sons of affected males have a 50% chance of showing the syndrome - True

2. Daughters of affected males have a 50% chance of showing the syndrome. - True

3. Sons of affected females have a 50% chance of showing the syndrome. - False

4. Daughters of affected females have a 50% chance of showing the syndrome. - False

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Why is it important for ecologists to be aware of forest destruction?
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Just incase they need to evacuate the area
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The cerebral cortex is very important and is responsible for sensation, perception, memory, association, thought, and voluntary physical action.The cerebellum coordinates muscle movements, and maintains posture and balance. You can think of the brainstem as the relay point that connects the cerebrum and cerebellum to the spinal cord.

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A D cell battery is a source of A. electricity B. Force C. magnetism D. Fuel
ZanzabumX [31]

Answer:

<h2>Option - A electricity </h2>

<h3>Hope it helps you </h3>

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