Mutations Quiz

laldypop
Quiz by laldypop, updated more than 1 year ago
laldypop
Created by laldypop almost 6 years ago
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Description

A quiz on Mutations to follow after Mutations notes by laldypop

Resource summary

Question 1

Question
What name is given to the process by which a spindle fibre fails during meiosis and one or more of the gametes produced receives an extra chromosome?
Answer
  • non-disjunction
  • meiosis
  • polyploidy
  • mutation

Question 2

Question
How many gametes (out of 4) will receive an extra chromosome if the spindle failure occurs during the first meiotic division?
Answer
  • 2
  • 4
  • 1
  • 0

Question 3

Question
If a normal human sperm fertilizes an egg containing an extra copy of chromosome 21, what is the diploid number of the zygote formed?
Answer
  • 44
  • 46
  • 47
  • 43

Question 4

Question
What is meant by the term polyploidy?
Answer
  • an increase in the number of chromosomes by 3 or more times
  • a decrease in the number of chromosomes by 3 or more times
  • an addition in the number of chromosomes in gametes
  • a subtraction in the number of chromosomes in gametes

Question 5

Question
How are polyploidy plants economically important to farmers?
Answer
  • they are resistant to disease
  • they are smaller so farmers will have a bigger yield
  • they make the coffee taste better
  • they give bigger yields

Question 6

Question
What name is given to a change which involves a chromosome breaking in two places and a segment of genes dropping out?
Answer
  • Deletion
  • Duplication
  • Inversion
  • Translocation
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