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melomori [17]
3 years ago
12

When human DNA molecules and chimpanzee DNA molecules are heated to separate the two sides of the molecules from each other and

then mixed together at cooler temperatures, strands of human DNA are able to form hydrogen bonds and base-pair with over 98% of the nucleotides in the chimpanzee DNA strands.Which of the following is the most logical conclusion to draw from this information?
A. Humans evolved from chimpanzees.
B. Ilumans and chimpanzees share a relatively recent common ancestor.
C. Chimpanzees evolved from humans.
D. Convergent evolution has led to similar nucleotide sequences in the two genomes.
Biology
1 answer:
Sloan [31]3 years ago
5 0

Answer:

B. Humans and chimpanzees share a relatively recent common ancestor.

Explanation:

Both the humans and Chimpanzees are the primates that are they belong to the same group called hominids and genus called Homo.

When the DNA sequences of the Chimpanzees and the Humans are sequenced and compared than they showed that 98% of the genome is similar.

In the given question, the single strands of the humans and the chimpanzees base-paired which showed that 98% of the nucleotide sequence is the same. The most possible reason for this similarity is that they both were evolved from the common ancestors and they diverged recently in the past.

Thus, Option-B is correct.

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Why is it important to use the mRNA to code for the amino acids?
Fynjy0 [20]

It will all make more sense if you start from the beginning of the sequence with the structure of DNA. You will remember that messenger RNA contains a sequence of bases which, read three at a time, code for the amino acids used to make protein chains. Each of the sets of three bases is known as a codon.


3 0
3 years ago
You have learned that humans have a total of 46 chromosomes and that chimpanzees have a total of 48 chromosomes. Use other textb
Anastaziya [24]

Answer:

The correct answer is included in the Explanation section

Explanation:

An organism with considerable more chromosomes than humans: the plant <em>Ophioglossum reticulatum</em> with 1260 chromosomes.

An organism with considerable fewer chromosomes than humans: the ant <em>Myrmecia pilosula</em> with 1 chromosome.

It might be thought that the chromosome number of a species is directly related to its complexity, meaning that an organism with a large number of chromosomes is more complex than an organism with a small number. However, this is not true. Chromosomes are structures of coiled DNA, and its number indicate how the cells wrapp their genomic material when they reproduce. The number of chromosomes is not related to the organism complexity, but rather the number of genes and their function.

8 0
2 years ago
What is translocation in plants? ?
seraphim [82]

Translocation is the movement of materials from leaves to other tissues throughout the plant. Plants produce carbohydrates (sugars) in their leaves by photosynthesis, but nonphotosynthetic parts of the plant also require carbohydrates and other organic and nonorganic materials.

3 0
3 years ago
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What causes ocean water to become denser
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It becomes denser when decreases temperature and increases in salinity. This means that the colder and saltier ocean water is, the denser it becomes.
6 0
3 years ago
Identify locations of serous membranes.
Ad libitum [116K]

Answer:

Covering organs within trunk cavities

Lining trunk cavities

Explanation:

Serous membranes are layers of tissue that protect the organs. They prevent the organs from getting damage from friction which can occur as they rub against the cavity walls.

Serous membranes have two layers, the visceral layer and the parietal layer. The visceral layer covers the organs while the parietal layer covers or lines the cavity walls. In between these two layers, you will find a gap or cavity filled with serous fluid.

They cover organs like the heart, lungs, blood vessels (some of them at least), testes and other organs found in the abdominal cavity.

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3 years ago
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