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GCSE
Gcse Biology
Unit 2 - Construct Genetic Diagrams (H)
Solution
Q.1.
What does homozygous mean?
0%
That the alleles are the same
0%
That the alleles are different
0%
That the alleles are varied
0%
That the alleles are mutated
Q.2.
Using a Punnett square, predict the ratio of tall to short when Tt is crossed with Tt. The allele for tall is T and the allele for short is t.
0%
2:1
0%
4:1
0%
3:1
0%
1:1
Q.3.
Which word describes TT?
0%
Heterozygous
0%
Heterogametic
0%
Homozygous
0%
Homogametic
Q.4.
Genotype describes which of the following?
0%
All alleles present in a population
0%
One allele
0%
Alleles present in a single organism, for a particular feature
0%
Four genes
Q.5.
What is the ratio of Tall:short if Tt is crossed with tt? Use a genetic diagram to predict the outcome.
0%
2:1
0%
3:1
0%
4:1
0%
1:1
Q.6.
'Tall' is an example of which of the following?
0%
A genotype
0%
An allele
0%
A gene
0%
A phenotype
Q.7.
Phenotype is the expression of what?
0%
The face
0%
The genotype
0%
The eyes
0%
The zygote
Q.8.
Alleles are different forms of the same...
0%
allele
0%
gene
0%
code
0%
egg
Q.9.
Which of the following is an example of a heterozygous genotype?
0%
TT
0%
CC
0%
Tt
0%
Tc
Q.10.
Which word describes Tt?
0%
Heterozygous
0%
Homozygous
0%
Heterogametic
0%
Homogametic
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