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Course: Alhussan Biology — Stage 9
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Alhussan Biology — Stage 9

Chapter 9: Plants and Photosynthesis

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Chapter 10: Excretion in Humans

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Chapter 11: Human Genetics and Development

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Chapter 12: The Carbon Cycle and Climate Change

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Chapter 13: Variation and Natural Selection

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Quiz

Biology 11.9 Chapter 11 Review: Human Genetics and Development — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Mass of a fetus through pregnancy. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
2.
A town had 190 boys and 200 girls born. What percentage were girls?
48.7%
105.3%
10.0%
51.3%
3.
Only the nucleus of the ____ sperm fuses with the egg.
successful
first
slowest
largest
4.
Mass of a fetus through pregnancy. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
5.
Height of identical twins raised apart. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
6.
Many thousands of sperm swim towards the ____.
egg
ovary
cervix only
placenta
7.
Which statement is correct?
Eggs have tails.
Genes code for sugars.
Fertilisation happens in the uterus.
Sperm carry enzymes in the head.
8.
True or false? Fertilisation happens in the uterus.
True
False
9.
Mass of a fetus through pregnancy. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
10.
A fetus grew from 1.0 to 3.6 kg. Calculate the percentage increase.
72%
360%
260%
2600%
11.
Height of identical twins raised apart. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 5
A
B
C
D
12.
Which term matches this definition? “Cell division that makes identical cells.”
Premature baby
Large study
Chromosome
Mitosis
13.
Boys and girls born in a town. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
14.
Which statement is correct?
The egg decides the baby's sex.
Blood mixes in the placenta.
Mother and fetus blood do not mix.
Several sperm nuclei fuse with the egg.
15.
True or false? Genes are short sections of DNA that code for proteins.
True
False
16.
Boys and girls born in a town. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
17.
Height of identical twins raised apart. Which has the greatest value?
Dr Dabour Hub Academy - figure 8
C
A
D
B
18.
Cells in an embryo over time. At what value of "Day" is "Cells" smallest?
Dr Dabour Hub Academy - figure 9
3
2
4
1
19.
Which statement is NOT correct?
Several sperm nuclei fuse with the egg.
Amniotic fluid cushions the fetus and keeps temperature steady.
There are equal chances of a boy or a girl.
Mother and fetus blood do not mix.
20.
Height of identical twins raised apart. About how many times bigger is D than C?
Dr Dabour Hub Academy - figure 10
6.0
9.0
3.0
12.0
21.
True or false? The egg decides the baby's sex.
True
False
22.
Cells in an embryo over time. Calculate the percentage change in "Cells" from 1 to 4.
Dr Dabour Hub Academy - figure 11
1600%
1500%
94%
−1500%
23.
Which features help a sperm cell?
A tail and many mitochondria
Chloroplasts
A cell wall
A large food store
24.
Mass of a fetus through pregnancy. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 12
"Mass (kg)" decreases as "Week" increases
"Mass (kg)" stays the same
"Mass (kg)" rises to a peak at 40, then falls
"Mass (kg)" increases as "Week" increases
25.
True or false? Differences in height between identical twins are due to environment.
True
False
26.
A zygote has 56 chromosomes. How many came from the father?
1
56
28
112
27.
Cells in an embryo over time. At what value of "Day" is "Cells" greatest?
Dr Dabour Hub Academy - figure 13
2
1
3
4
28.
Which is the correct definition of “Meiosis”?
Cell division that halves the chromosome number.
A long thread of DNA formed before cell division.
A defect of the developing spinal cord.
Loss of a pregnancy before the baby can survive.
29.
Height of identical twins raised apart. What is the value for A?
Dr Dabour Hub Academy - figure 14
2
6
4
1
30.
Mass of a fetus through pregnancy. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 15
A
B
C
D
31.
True or false? Height depends only on genes.
True
False
32.
The embryo implants in the uterus about a ____ later.
month
day
year
week
33.
Mass of a fetus through pregnancy. By how much does "Mass (kg)" change between 16 and 40?
Dr Dabour Hub Academy - figure 16
4.3
5.4
4.4
4.5
34.
A town had 190 boys and 205 girls born. What percentage were girls?
15.0%
48.1%
107.9%
51.9%
35.
Which statement is correct?
There are equal chances of a boy or a girl.
Identical twins have different blood groups.
Fertilisation happens in the uterus.
Blood mixes in the placenta.
36.
Which is the correct definition of “Allele”?
A section of DNA that codes for a characteristic.
The process of giving birth.
A different version of a gene.
The larger sex chromosome.
37.
Which is the correct definition of “Zygote”?
The mass of a baby at birth.
Tube where fertilisation usually happens.
A fertilised egg cell.
Unexplained death of a sleeping baby.
38.
Height of identical twins raised apart. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 17
A
B
C
D
39.
True or false? Gametes have 46 chromosomes.
True
False
40.
Females are XX and males are ____.
X
XY
YY
XX
41.
There are equal chances of a boy or a ____.
girl
zygote
twin
fetus
42.
True or false? Offspring inherit one allele of each gene from each parent.
True
False
43.
A town had 190 boys and 196 girls born. What percentage were girls?
103.2%
49.2%
50.8%
6.0%
44.
The genetic diagram shows the possible sex chromosomes of children. What fraction are girls?
Dr Dabour Hub Academy - figure 18
3/4
1/2
1
1/4
45.
A fetus grew from 1.5 to 3.0 kg. Calculate the percentage increase.
50%
150%
100%
200%
46.
Height of identical twins raised apart. Which has the smallest value?
Dr Dabour Hub Academy - figure 19
A
D
B
C
47.
Mass of a fetus through pregnancy. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 20
A
B
C
D
48.
A zygote has 14 chromosomes. How many came from the father?
14
7
28
1
49.
Which is the correct definition of “Gamete”?
The spiral shape of DNA.
Tube where fertilisation usually happens.
An allele that shows only with two copies.
A sex cell with half the chromosome number.
50.
Which statement is correct?
The zygote divides by meiosis.
Genes code for sugars.
Many thousands of sperm swim towards the egg.
Blood mixes in the placenta.
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Part of Chapter 11: Human Genetics and Development — see every lesson and quiz in this unit.
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