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Author Question: A cell that does not contain a multiple of 23 chromosomes is called a _____ cell. a. diploid b. ... (Read 221 times)

abern

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on: Jun 25, 2018
A cell that does not contain a multiple of 23 chromosomes is called a _____ cell.
 
  a. diploid
  b. euploid
  c. polyploid
  d. haploid

Question 2

What is the most common cause of Down syndrome?
 
  a. Paternal nondisjunction
  b. Maternal translocations
  c. Maternal nondisjunction
  d. Paternal translocations


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tanna.moeller

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Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: C
A polyploid cell is one in which a euploid cell has more than 23 pairs of chromosomes. A diploid cell is when the somatic cell nucleus has 46 chromosomes in 23 pairs. A euploid cell is a cell with multiples of the normal number of chromosomes. A haploid cell has only one member of each chromosome pair, for a total of 23 chromosomes.

Answer to Question 2

ANS: C
The most common cause of Down syndrome is maternal, not paternal, nondisjunction. Transloca-tion is not a cause of this syndrome.


abern

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Reply #2 on: Jun 25, 2018
Correct answers!


tanna.moeller

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Reply #3 on: Jun 25, 2018
Great! Please up vote :D


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