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kupik [55]
1 year ago
7

Survival on land for organisms is difficult because of the problem of.

Biology
1 answer:
Alex787 [66]1 year ago
7 0

Answer: Relatively less abundant water on land makes survival difficult for terrestrial animals. All four problems stem from a lack of water. Terrestrial animals spend energy looking for water, which is not available easily. Terrestrial temperature fluctuates widely, so energy investments have to be made to keep body temperatures regulated.

Explanation:

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3 years ago
The formation of pyrimidine dimers results from which of the following?
umka2103 [35]

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exposure to ultraviolet radiation is a correct answer.

Explanation:

Ultraviolet light exposure results in the formation of pyrimidine dimers. Ultraviolet radiation damage the DNA by resulting in chemical changes.

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The formation of the pyrimidine dimers results in the distortions of DNA helix and disrupt the base-pairing during the replication of DNA which results in a mutation.

5 0
2 years ago
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8 0
3 years ago
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7 0
3 years ago
The scientists mapping the SNPs in the human genome noticed that groups of SNPs tended to be inherited together, in blocks known
Over [174]

Answer:

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Explanation:

Haplotypes are block-like sequences of DNA that are inherited together due to low recombination rates. Moreover, single-nucleotide polymorphism (SNP) mapping is a very useful methodology used to map the site of SNP mutations (i.e., SNP variants). In this regard, it has been observed that there are approximately 10 million common SNPs in the human genome. These SNPs contribute to the wide range of phenotypic variation observed in human populations for different traits (e.g., eye color, hair, weight, height, etc). Moreover, researchers have determined that SNPs can be clustered into haplotypes, thereby haplotypes can be accurately sampled by as few as approx. 300,000 selected SNPs, which are sufficient to represent all of the genetic variation across different human genomes.

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