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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

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7 · Transport in Plants

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8 · Transport in Mammals

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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

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19 · Genetic Technology

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Quiz

16.1.2 Homologous Chromosomes – Exam questions

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1.
Which stage in the table separates homologous chromosomes?
Anaphase II
Metaphase II
Anaphase I
Prophase II
2.
Homologous chromosomes are chromosomes that
Homologous chromosomes are chromosomes that
are found only in identical twins.
are formed during mitosis.
split apart during meiosis II.
resemble one another in shape, size, and function.
determine the sex of an organism.
3.
Homologous chromosomes separate in this phase.
SAT Biology - Question 106
A
B
C
D
E
4.

Homologous chromosomes are

identical copies joined at a centromere
any two chromosomes
sex chromosomes only
a pair of chromosomes with the same genes at the same loci, one from each parent
5.
Which statement best describes Homologous chromosomes?
One set of chromosomes; human gametes have 23.
Fusion of two haploid gametes, restoring the diploid number.
A matching pair, one from each parent, carrying the same genes.
Two sets of chromosomes; human body cells have 46.
6.
The diagram shows homologous chromosomes exchanging segments. When and why does this occur?
Dr Dabour Hub Academy - figure 1
Anaphase II, halving the chromosome number
Prophase I, producing new combinations of alleles
Mitosis, producing identical cells
Fertilisation, restoring diploidy
7.
Homologous chromosomes carry the same genes but may carry different alleles. True or false?
False
False, they carry different genes
True
True only for sex chromosomes
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