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kumpel [21]
2 years ago
15

Why is meiosis important for sexua reproduction?

Biology
1 answer:
Shtirlitz [24]2 years ago
4 0

Answer:

Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.

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A specific atom of molybdenum has an atomic number of 42 and a mass number of 96. How many protons are in this atom of molybdenu
Masja [62]

Answer:

42

Explanation:

The mass number of an atom is equal to the number of protons plus the number of neutrons in a nucleus  

This atom Mo-96 has an atomic number of 42 and so has 42 protons in the atom.

7 0
3 years ago
Compare and contrast the contributions of Neel, Pauling, and Ingram to our understanding of the genetic and molecular basis of s
taurus [48]

He demonstrated that SCD and sickle cell trait were due to the presence of abnormal 8-globin polypeptides in red blood cells. He demonstrated that the electrophhoretic mobility of B-globin from patients with SCD was different from that of healthy individuals. He demonstrated that both parents of multiple patients with SCD had low levels of sickled red blood cells. He hypothesized that SCD was a recessive trait and that the parents of patients with SCD would be heterozygous carriers. He demonstrated that the difference between B-globin polypeptides in individuals who were healthy and those with SCD is an amino acid substitution. He performed a peptide fingerprint analysis on B-globin from individuals with 84 84 and 89 88, which identified the segment of B-globin that was changed by the BS mutation. James Neel Linus Pauling Vernon Ingram

hope it helps..

7 0
3 years ago
Changing one base in a gene could have the
saw5 [17]


answer: 2) sequence of building blocks of a protein found in a cell.

Just random FYI:

- it is a mutation, that is generally not looked upon as being severe or detrimental to the person

-by changing the base by either adding or deleting from a protein strand will cause the protein to be useless

-frameshift mutation deals with DNA sequence being shifted. For example: a DNA strand looks like a ladder. If one of the rungs on the ladders gets skipped and the next ladder rung gets the code that the previous rung should have gotten, then that is what a frameshift mutation is. Hopefully that makes sense. It's easier to explain if there was a picture.

there are other types of mutation but I won't get into them.


Hopefully this helped and good luck.

5 0
3 years ago
A. Do mammals such as humans have a cloaca?
blagie [28]

Most adult placental mammals have no remaining trace of the cloaca. Being placental animals, humans only have an embryonic cloaca, which is split up into separate tracts during the development of the urinary and reproductive organs.

8 0
3 years ago
New combinations of genes may be produced by?
skad [1K]
<span>New combinations of genes may be produced by </span>immigration, mutation and sexual reproduction. These new combinations are also called variations.

4 0
3 years ago
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