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Artemon [7]
3 years ago
11

Which type of cell division only occurs in organisms whose cells contain chromosomes? A. Duplication B. Meiosis C. Mitosis D. Re

plication
Biology
2 answers:
Over [174]3 years ago
8 0
C. mitosis 
have a nice day;)
Oxana [17]3 years ago
4 0
Mitosis, it only occurs in organisms whose cells contains chromosomes.
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A forest fire destroys an area. Asmall population of trees and a large population of birds are both affected.
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Define the following terms. Drag and drop the words into the appropriate blanks to complete the sentences.
FrozenT [24]

Answer:

1. replication

2. gene

3. strand polarity

4. translation

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6. chromosome

7. antiparallel

8. transcription

9. allele

Explanation:

1. Replication is the process by which DNA is duplicated or the process of making another copy of DNA.

2. Gene is the physical unit of heredity i.e a segment of DNA transferred from parents to offsprings. A gene also encodes a useful products such as protein.

3. A DNA strand is a polar molecule, which is attributed to the phosphate group at the 5'-end of DNA and the hydroxyl group at the 3'-end of DNA.

4. Translation is the process whereby the information in a mRNA molecule is used to synthesize a protein.

5. Complementary base pairing is a phenomenon whereby Adenine (A) binds to thymine (T), guanine (G) binds to cytosine (C).

6. A chromosome contains of single long molecule of DNA coiled together around histone proteins. The chromosome is associated with different types of proteins.

7. In the double-stranded DNA molecule, one strand runs from 5' to 3' and the other runs from 3' to 5'. This is called ANTIPARALLEL nature of DNA.

8. Transcription is the process by which a DNA molecule is used to synthesize a mRNA single strand.

9. Allele is the alternative or contrasting form of a gene. Each allele is contributed by each parent

5 0
3 years ago
The actual transport of protons by the proton pump is mediated by a transmembrane protein which undergoes a change in its
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Answer:

The correct answer is A) Conformation.

Explanation:

Proton pumps are usually molecules that are able to change its conformation in order to transport molecules from one side to the other. The amino acid sequence cannot be changed, because it would change completely the function of the protein. For example, the sodium/potassium pump changes its conformation in order to move these molecules from one side of the membrane to the other.

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Sex cells or gametes, also known as eggs and sperm, which have half the chromosomes of the organism in them are made during whic
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Yes there are cell organisms are divided into each of there own groups
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Read 2 more answers
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