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Flura [38]
2 years ago
14

At the end of meiosis l, 4 daughter cells are created A. True B. False

Biology
1 answer:
leonid [27]2 years ago
3 0

Answer:

TRUE

Explanation:

By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell. Each daughter cell is haploid, because it has half the number of chromosomes as the original parent cell

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The concept of reproductive isolation relates more toward genetic____ to distinguish between species.
liq [111]

Answer:

similarities

Explanation:

The concept of reproductive isolation relates more toward genetic similarities to distinguish between species. The barriers prevent closely related species living in the same geographical area from interbreeding. They help to keep each species distinct from the others.

3 0
3 years ago
Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base
Georgia [21]

Answer:

The type of mutation responsible for changing a base in the mRNA strand, without changing the coding aminoacid or protein, is called a <u>silent</u> mutation.

Explanation:

In a silent mutation occurs the change of a nitrogenous base in one of the codons that encodes an aminoacid, without changing the aminoacid or altering the structure or function of the protein to be synthesized.

In this type of mutations the change of the base does not mean the change of the aminoacid, because some aminoacids can be coded with more than one codon. In the case of Leucine, the codons that encode it are CUU, CUC, CUG or CUA, so even if a base changes, the final protein will be the correct one.

For the other options:

  • <u><em>Missense</em></u><em>: the change of the base in the DNA chain implies the change of the codon in the mRNA and of the encoded aminoacid, in that way a structural and functional alteration of the synthesized protein occurs. </em>
  • <u><em>Nonsense</em></u><em>: the change in the nitrogenous base in the DNA leads to the coding of a termination codon, so that the protein is ultimately incomplete.</em>
  • <u><em>Insertion</em></u><em>: in this case there is the addition of more nitrogenous bases to the DNA chain, with respect to the original one.</em>
3 0
3 years ago
Read 2 more answers
What is an organism called that cannot make its own food and gets energy from the food it eats?
lidiya [134]

An organism that cannot make its own food is called a heterotroph. All animals and species of fungi, along with some types of bacteria, are heterotrophs.

6 0
2 years ago
HELP! QUICK!
Readme [11.4K]

Answer:

b

Explanation:

7 0
3 years ago
What is nanometres into mm??
Mnenie [13.5K]

Answer:

1 millimeter is 1,000,000 nanometers

Explanation:

7 0
3 years ago
Read 2 more answers
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