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Food production

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Question 65

In an agricultural study, scientists used a cell sorter to separate bovine sperm cells containing X chromosomes from those containing Y chromosomes, with the aim of increasing the proportion of female offspring (heifers) for dairy production.

a.

In one trial, sperm cells from the X-chromosome-selected group produced 45 female offspring out of a total of 48 offspring. Calculate the success of producing females as a percentage of the total number of offspring. Give your answer to 1 decimal place.

[2]
b.

Describe the control group that should be used in this investigation to compare against the sorted sperm group.

[2]
c.

Predict the expected percentage of female offspring in this control group.

[1]

Food production Questions

  1. IGCSE
  2. /Biology
  3. /Food production