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Worksheets11 Genetics A
Total questions: 28
Worksheet time: 57mins
Name
Class
Date
1.
Cell division used for growth
a)
Mitosis
b)
Meiosis
c)
Fertilisation
d)
Recombination
2.
Cell division that produces gametes
a)
Mitosis
b)
Meiosis
c)
Fertilization
d)
Recombination
3.
Type of variation illustrated by height in humans
a)
Continuous
b)
Discontinuous
4.
Type of variation illustrated by height in pea plants
a)
Continuous
b)
Discontinuous
5.
Rapid form of reproduction
a)
Meiosis
b)
Sexual
c)
Asexual
d)
Mitosis
6.
Type of reproduction that results in variation
a)
Meiosis
b)
Sexual
c)
Asexual
d)
Mitosis
7.
Number of chromosomes in a human body cell
a)
Haploid
b)
Diploid
c)
23
d)
46
8.
Sex chromosomes of a male
a)
XX
b)
XY
c)
XXX
9.
Sex chromosomes of a female
a)
XX
b)
XY
c)
XXX
10.
Symbol for parent generation
a)
P
b)
P1
c)
F1
d)
F2
11.
Symbol for first filial generation
a)
P
b)
P1
c)
F1
d)
F2
12.
Symbol for a cross between offspring
a)
P
b)
P1
c)
F1
d)
F2
13.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
14.
The alleles an individual has for a certain trait
a)
Genes
b)
Genotype
c)
Phenotype
d)
Genome
15.
Two identical alleles for a genotype
BB or bb
BB or bb
a)
Homozygous dominant
b)
Heterozygous
c)
Homozygous recessive
d)
Homozygous
16.
Two different alleles for a genotype
Bb
Bb
a)
Homozygous dominant
b)
Heterozygous
c)
Homozygous recessive
d)
Homozygous
17.
Term for what an individual looks like / expression of genotype
a)
Phenotype
b)
Genotype
c)
Gene
d)
Allele
18.
Term for shape of DNA
a)
Double helix
b)
Double stranded
c)
Alpha helix
19.
Term for type of replication when new chromosome is made up of half old and half new DNA
a)
Conservative
b)
Identical
c)
Semi-conservative
20.
Name for the chemical that a chromosome is made of
a)
Nucleic acid
b)
De-oxyribonucleic acid
c)
Ribonucleic acid
d)
Nucleotides
21.
Term for the number of chromosomes in a gamete
a)
23
b)
46
c)
Diploid
d)
Haploid
22.
Alleles that can hide another allele. Always expressed when present
a)
Dominant
b)
Recessive
c)
Co-dominant
d)
Incompletely dominant
23.
Allele that get hidden or masked by another allele. Only expressed when homozygous
a)
Dominant
b)
Recessive
c)
Co-dominant
d)
Incompletely dominant
24.
Term for the number of chromosomes in a body cell (e.g. finger cell)
a)
23
b)
46
c)
Diploid
d)
Haploid
25.
Units that make up DNA
a)
Sugar
b)
Phosphate
c)
Nucleotides
d)
Nitrogenous bases
26.
Makes up the rungs of the ladder in DNA
a)
Sugar
b)
Phosphates
c)
Nucleotides
d)
Nitrogenous bases
27.
Chemicals which make up the uprights of the ladder of DNA
a)
Sugar and phosphates
b)
Cytosine and guanine
c)
Adenine and thymine
28.
Alternative forms of a gene are called
a)
Alleles
b)
Genotype
c)
DNA
d)
Genetics
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