QUESTIONS
1.1 Multiple choice DNA 20
Reproductive strategies
Human reproduction
1.2 Terminology DNA 10
Meiosis
Reproductive strategies
Human reproduction
1.3 Match columns DNA 10
Meiosis
Reproductive strategies
1.4 Knowledge Questions / Male reproductive system 10
Diagrams sperm
QUESTION 1 SECTION A: 50 MARKS
2.1 Knowledge questions/ diagrams DNA 17
/ Drawings
RNS
2.2 Knowledge questions / DNA 6
Application questions Profiling
2.3 Knowledge questions / DNA 16
Application questions
Protein synthesis
2.4 Knowledge questions Meiosis 11
QUESTION 2: 50 MARKS
3.1 Knowledge questions Reproductive strategies 16
Amniotic egg
3.2 Knowledge questions Human reproduction 10
3.3 Knowledge questions Menstruation 10
3.4 Application questions Genetics 14
QUESTION 3: 50 MARKS SECTION B = 100 MARKS
TOTAL: 150
1|Page www.summariessa.co.za Life Sciences
Grade 12 June Paper
, Life sciences
Grade 12
Examiner: Ms N.Harmse
Date: JULY 2024 Time: 2 hours 30 minutes
Total: 150
SECTION A
QUESTION 1
1.1 Different options are given as possible answers for the following questions. Choose the
correct answer and write only the letter (A to D) next to the question number (1.1.1 to 1.1.5)
on the FOLIO PAPER, e.g. 1.1.6 E.
1.1.1 The structure in the amniotic egg that stores waste materials.
A. Altricial development.
B. Zygote.
C. Allantois.
D. Chorion.
1.1.2 Part of the female reproductive system where fertilization occurs.
A Ovary.
B Fallopian tube
C Uterus.
D Vas deferens.
1.1.3 A hormone produced by the pituitary gland that stimulate milk production in women
A. Prolactin.
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, B. Luteinizing hormone.
C. Follicle stimulating hormone.
D. Progesterone.
1.1.4 The type of sugar found in an RNA molecule.
A. Deoxyribose sugar.
B. Replicate.
C. Ribosome.
D. Ribose.
1.1.5 DNA was analyzed and found to contain 37% C(cytosine). What percentage of the
molecule is adenine?
A. 74%
B. 13%
C. 37%
D. 26%
1.1.6 A hormone that stimulates the maturation of sperm and also puberty in men.
A. Oestrogen.
B. Testosterone.
C. Tests.
D. Spermatogenesis.
1.1.7 Nitrogenous base found only in RNA molecules.
A. Uracil.
B. Adenine.
C. Thymine.
D. Guanine.
1.1.8 When the nucleus of the sperm fuses with the nucleus of the ovum.
A. Implantation.
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Grade 12 June Paper