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WorksheetsReproduction GCSE
Total questions: 14
Worksheet time: 7mins
What is an advantage of sexual reproduction?
Is a fast process
Is energy efficient
Produces variation
Only one parent needed
Name the process that produces gametes.
Variation
Fertilisation
Meiosis
Mitosis
What is the meaning of the term gene?
A section of DNA that codes for one amino acid
A section of DNA that codes for a protein
A single nucleotide of DNA
One of the bases of DNA
Which of the following is an inherited disorder?
Malaria
HIV
Measles
Cystic fibrosis
The allele for brown eyes is B and the allele for blue eyes is b. Which of the following genotypes is homozygous dominant?
BB
bB
bb
Bb
Which sex chromosome or chromosomes can be found in sperm?
X only
Y only
X and Y
X or Y
Which organism is most likely to undergo both sexual and asexual reproduction?
Vertebrates
Plants
Fungi
Malaria parasite
Which statement about the human genome is true?
The human genome contains around 2000 genes.
The human genome was the first genome to be sequenced.
Humans are the species with the largest genome.
Mitochondria has its own DNA.
What is the most likely result of a mutation?
A change that leads to an evolutionary advantage
Death of an organism
A new form of a gene is produced
Changes the shape of the protein
Which row from the table shows the features of CVS?
A
B
C
D
B is the allele for brown eyes and b is the allele for blue eyes.
Calculate the probability of a blue-eyed child if the parents had the
genotype Bb and bb.
75%
50%
25%
0%
The percentage of the base adenine (A) in a human’s DNA was 36%.
What would be the percentage of cytosine (C)?
14%
32%
64%
36%
An organism had 24 chromosomes in the nucleus of one of its body cells.
How many chromosomes would there be in a sperm cell and a skin cell from
the same organism?
sperm cell: 12, skin cell: 12
sperm cell: 24, skin cell: 24
sperm cell: 12, skin cell: 24
sperm cell: 24, skin cell: 12
In which situation would asexual reproduction be an advantage?
Changes in environmental conditions
Presence of alleles for polydactyly
Adverse environmental conditions for fungi
Geographical isolation of plants
