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Worksheets【Form 4 - 2021】 Chapter 5
Total questions: 45
Worksheet time: 27mins
Where chromosome located in?
(a)
染色体 的Spelling是什么？
(a)
Characteristic of chromosome
Thread like structure
fat and short
long
centromere
Function of Chromosome
Carries genetic information
carries DNA
哪两个是细胞分裂的正确名称?
mitosis
meiosis
miosis
metosis
Meiosis 分裂几次？
1
2
Mitosis 分裂几次？
1
2
Mitosis 会有多少Daughter cell
2
4
Meiosis 会有多少Daughter cell
2
4
Is parent cell and daughter cell in mitosis are the same?
Yes
No
Is parent cell and daughter cell in meiosis are the same?
Yes
No
(Mitosis)
One Parent cell: 10
One Daughter cell: _____
5
10
(Mitosis)
One Parent cell: 16
One Daughter cell: _____
8
16
(Meiosis)
One Parent cell: 16
One Daughter cell: _____
8
16
(Meiosis)
One Parent cell: _____
One Daughter cell: 10
10
20
(Mitosis)
One Parent cell: _____
One Daughter cell: 10
10
20
Where mitosis occurs?
body cell
somatic cell
reproductive cell
What happens in Prophase?
Replication occurs
Line up along equatorial line
Separates and move
Cell divides into 2 / 4 daughter cell
What happens in Metaphase?
Replication occurs
Line up along equatorial line
Separates and move
Cell divides into 2 / 4 daughter cell
What happens in Anaphase?
Replication occurs
Line up along equatorial line
Separates and move
Cell divides into 2 / 4 daughter cell
What happens in Telophase?
Replication occurs
Line up along equatorial line
Separates and move
Cell divides into 2 / 4 daughter cell
Where meiosis occurs?
body cell
somatic cell
reproductive cell
germ cell
gametes
What happens during Metaphase I in Meiosis?
Crossing over occurs
Line up
Why variation occurs?
(a)
Numbers of chromosome in ovum
22 + Y
22 + X
Number of chromosome in a male
44 + XY
44 + XX
Number of chromosome in a female
44 + XY
44 + XX
How many chromosome in human?
46
23
Function of meiosos
To produce new cell
To produce gametes
T represents tall
t represents short
Which is dominant?
Tt
tT
TT
tt
T represents tall
t represents short
Which is recessive?
Tt
tT
TT
tt
What is the percentage of Mr and Mrs Wong gets a baby boy in future?
25%
50%
75%
100%
What is the percentage of Mr and Mrs Wong gets a baby girl in future?
25%
50%
75%
100%
Which gender chromosome shows that the person has inheritance sickness?
XY
X'Y
XX
X'X'
以下哪个是属于隐形基因遗传疾病？
XY
X'Y
X'X
X'X'
变异 英文叫什么？
(a)
Down's syndrome 的特征是什么？
47 chromosomes (21st pair)
47 chromosomes (23rd pair)
45 chromosomes (23rd pair)
Klinefelter's syndrome 的特征是什么？
47 chromosomes (21st pair)
47 chromosomes (23rd pair)
45 chromosomes (23rd pair)
Turner's syndrome 的特征是什么？
47 chromosomes (21st pair)
47 chromosomes (23rd pair)
45 chromosomes (23rd pair)
先天性特征
Discontinuous Variation
Continuous Variation
后天性特征
Discontinuous Variation
Continuous Variation
Which of the following is discontinuous variation?
Blood group
Height
Fingerprint
Weight
Which of the following is continuous variation?
Earlobes
Height
skin colour
Intelligence
Which variation can be influenced by the environment factors?
Discontinuous Variation
Continuous Variation
Which variation influenced by the genetic factors?
Discontinuous Variation
Continuous Variation
