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Elina [12.6K]
3 years ago
9

Please answer giving brainliest

Biology
1 answer:
nika2105 [10]3 years ago
3 0

Answer: sorry

Explanation:

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A normal man and normal woman marry. What is the chance that they will produce a male child with Down's syndrome?
nikitadnepr [17]

Answer:

The chance of a normal couple having a child with down syndrome is 1 to 600 births.

Explanation:

Down syndrome is a genetic flaw that occurs when the fetus is being formed.

A human cell considered normal has 46 chromosomes, divided into 23 pairs. For some unknown reason, an error may occur at the beginning of embryonic development and an extra chromosome is created, which binds to par 21. The result is cells with 47 chromosomes. This causes the said syndrome.

It is important to know that this failure happens at random. It is nobody's responsibility. It has not been proven to date that lifestyle, actions during pregnancy, smoking, drinking, medicines, environmental factors or kinship between the couple can influence this occurrence. She is not contagious either. The likelihood of a normal couple having a child with the syndrome is approximately 1 to 600 births.

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3 years ago
Any one free?For talk any indian gìrl​
kykrilka [37]

Answer:

no pe i aint indian

Explanation:

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2 years ago
Explain why a lock and key are used to describe the way in which an enzyme works. Describe any ways in which the
LiRa [457]
The lock an key analogy is used because each enzyme has specific substrates that fit into it. This is like how locks only work with a specific key. The enzyme is the lock and the substrates are the key.
2
This analogy is not perfect because there are often multiple substrates for each enzyme reaction. It only takes one key to turn the lock. The reaction is also taking place between the substrates themselves and not the enzyme. In the lock and key analogy, the lock is affected by the key, but in an enzyme reaction, the substrates are affected by the enzyme.
Hope I’ve helped ;)
6 0
3 years ago
The rate that rocks get eroded is based on many factors. One of them is based on the _
FrozenT [24]
Pretty sure the answer is B as erosion happens from weather or rain
8 0
3 years ago
What process allows for the development of haploid sex cells?
garri49 [273]

Answer:mitosis. meiosis.

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3 years ago
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