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Lelu [443]
3 years ago
13

_____ is a method to detect prenatal genetic abnormalities that samples the membrane enveloping the amniotic sac and fetus:

Biology
1 answer:
love history [14]3 years ago
4 0

Answer:

Chorionic villus sampling

Explanation:

Chorion is one of the extraembryonic membranes that surround the fetus and the amniotic cavity. The cells present in the chorion have the same genome and chromosomes as present in the fetus. Therefore, some of the chorionic tissues are collected from the chorionic villi. These tissues are then analyzed for any chromosomal abnormality. This process is called chorionic vill sampling. For the purpose, tissue collection can be done by inserting a catheter through the cervix or using a needle through the uterine wall.

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pantera1 [17]

Answer:

1.2 million plants and animals

Explanation:

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Earth has enormous varieties of living species ranging from microscopic bacterias to huge animals like elephants, rhinoceros, from water plants and animals to terrestrial plants and animals , from autotrophic to heterotrophic organisms, from forest biome to desert biome etc.

In totality, there are 8.7 million species of plants and animals on earth. But till today only 1.2 million species have been identified and described.  

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3 years ago
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Answer:

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Explanation:

The advantages of sexual reproduction: produces genetic variation in the offspring. the species can adapt to new environments due to variation, which gives them a survival advantage. a disease is less likely to affect all the individuals in a population.

4 0
3 years ago
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Answer:

Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.

Explanation:

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Answer:

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