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Question 17N.2.HL.TZ0.06b

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Date November 2017 Marks available [Maximum mark: 8] Reference code 17N.2.HL.TZ0.06b
Level HL Paper 2 Time zone TZ0
Command term Compare and contrast Question number b Adapted from N/A
b.
[Maximum mark: 8]
17N.2.HL.TZ0.06b
(b)

Cell biologists play an important role in research into disease, fertility, evolution and many
other areas of science.

Compare and contrast the processes of spermatogenesis and oogenesis.

[8]

Markscheme

a. both result in haploid cells/gametes

b. both involve mitosis at the start/in the «germinal» epithelium

c. both have cell growth «before meiosis»

d. both involve «two divisions of» meiosis

e. both involve differentiation to produce a gamete

f. both are stimulated by hormones

    OR

    spermatogenesis stimulated by testosterone and oogenesis stimulated by FSH

A table is not required but both statements in one row of the table must either be explicitly stated or clearly implied to award the mark

[Max 8 Marks]

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