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dusya [7]
3 years ago
14

A person has a condition known as trisomy. What does this mean?

Biology
1 answer:
olya-2409 [2.1K]3 years ago
6 0
<span>Trisomy is a condition in which a person's cells have three chromosomes in a single set. Normally, a person's chromosomes come in pairs and humans have 23 pairs of these chromosomes (46 in total).

When a person has a trisomy disorder, an additional chromosome is found in one of the pairs of chromosomes. When this happens the individual has a total of 47 chromosomes in his cells. Down syndrome, Edward syndrome, and Patau syndrome are the most common gene abnormalities caused by trisomy disorder.</span>
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Which of the following does NOT contribute to genetic variation among plants?
egoroff_w [7]

Answer:

The correct answer will be option-A.

Explanation:

Genetic variation is the difference in the DNA sequences of individuals in a population. Genetic recombination is the main reason for the diversity of organism on earth.

The genetic variation takes place during gamete formation by recombination of DNA sequences which takes place during prophase of meiosis I.

Since genetic variation involves changes in the coding segments of the DNA called genes which leads to mutations, therefore, flowering time does not influence the genetic variation and option-A is the correct answer

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4 years ago
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Radda [10]

Answer:

The correct answer is: Clostridium Tetani.

Explanation:

Clostridium tetani is a Gram-positive bacteria found in soil.

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8 0
3 years ago
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SashulF [63]
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7 0
3 years ago
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¿Cuál de las siguientes opciones son adaptaciones de las plantas al desierto? a) Las raíces superficiales y extensas. b) Las hoj
IrinaVladis [17]

Answer:

a) Las raíces superficiales y extensas

c) El cuerpo carnoso de las plantas

d) Las hojas modificadas en forma de espina

Explanation:

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3 0
3 years ago
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