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Course: Cambridge AS & A Level Biology 9700 ...
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Cambridge AS & A Level Biology 9700 — Revision Notes

1 · Cell Structure

0/26

2 · Biological Molecules

0/51

3 · Enzymes

0/29

4 · Cell Membranes and Transport

0/41

5 · The Mitotic Cell Cycle

0/21

6 · Nucleic Acids and Protein Synthesis

0/22

7 · Transport in Plants

0/28

8 · Transport in Mammals

0/39

9 · Gas Exchange

0/13

10-11 · Infectious Disease and Immunity

0/43

12 · Energy and Respiration

0/37

13 · Photosynthesis

0/23

14-15 · Homeostasis and Control

0/57

16 · Inherited Change

0/33

17-18 · Selection, Evolution, Classification and Conservation

0/70

19 · Genetic Technology

0/44
Quiz

16.2.2 Predicting Inheritance- Monohybrid Crosses – Exam questions

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  • Questions count: 10
  • Passing grade: B+
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1.

Two heterozygous tall pea plants (Tt) are crossed. The expected ratio of tall to dwarf offspring is

1 : 1
1 : 0
1 : 3
3 : 1
2.

A heterozygous plant (Tt) is crossed with a homozygous recessive plant (tt). The expected ratio is

3 : 1
1 : 1
1 : 0
2 : 1
3.

In humans, the sex chromosomes of a male are

XX
XY
YY
XO
4.

The probability of a child being a girl is

25 %
75 %
50 %
100 %
5.
IGCSE Biology 17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Question 3
IGCSE Biology 17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Question 3
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B
C
D
6.
IGCSE Biology 17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Question 6
IGCSE Biology 17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Question 6
A
B
C
D
7.
IGCSE Biology 17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Question 9
IGCSE Biology 17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Question 9
A
B
C
D
8.
IGCSE Biology 17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Question 13
IGCSE Biology 17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Question 13
A
B
C
D
9.
Why are X-linked recessive conditions more common in males?
Males have two X chromosomes
Males have only one X, so one recessive allele is expressed
The Y chromosome carries the dominant allele
Females cannot inherit X-linked alleles
10.
A person with blood group AB shows which type of inheritance?
Sex linkage
Epistasis
Recessive inheritance
Codominance
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Part of 16 · Inherited Change — see every lesson and quiz in this unit.
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