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alukav5142 [94]
3 years ago
10

Which of the following would be examples of abiotic factors in a mountain river ecosystem?

Biology
1 answer:
melisa1 [442]3 years ago
6 0
Sand , water , and minerals
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3 years ago
The meselson-stahl experiment supported which mechanism for dna replication? see section 15.2 (page 320) .
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Answer;
DNA replication is semi-conservative.
The meselson-stahl experiment supported the hypothesis that DNA replication is semi-conservative.

Explanation;
The Meselson-Stahl experiment
was an experiment by Meselson and Stahl that proved that the semi-conservative model by Watson and Crick was correct. 
DNA replication is semi-conservative in the sense that the new helices formed after replication contain, one new DNA strand and one old strand from the parent DNA molecule.
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Which pathogen is a single-celled, prokaryotic organism.
Mkey [24]

Answer:

Only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes—pro means before and kary means nucleus. Animals, plants, fungi, and protists are all eukaryotes—eu means true—and are made up of eukaryotic cells.

Explanation:

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Imagine a bacterial population of 100 cells. Five of the cells are resistant to sulfonamides, and six other cells are resistant
musickatia [10]

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4 years ago
If Jennifer is normal (and is not a carrier) but her husband, James, is colorblind, what are the chances of their daughter, Jean
agasfer [191]

Answer:

0

Explanation:

This question involves a single gene coding for sight in humans. The allele for normal vision (C) is dominant over the allele for color blindness (c).

Based on the question, If Jennifer is normal (and is not a carrier) i.e. she has a genotype CC, and her husband, James, is colorblind with genotype cc. Each parent will produce C and c gametes respectively. Using these gametes in a punnet square (see attached image), all of the offsprings will have the genotype Cc, which is phenotypically normal visioned.

Therefore, according to this question, the chance of their daughter being color blind is 0.

5 0
3 years ago
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