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Y10 Inheritance Key Tems
Test Description: Key terms for genetic inheritance
Instructions: Answer all questions to get your test result.
1) Which of the following genotypes is homozygous dominant?
A
BB
B
bB
C
bb
D
Bb
2) Which of the following genotypes is homozygous recessive?
A
bb
B
Bb
C
bB
D
BB
3) What letter is used to show a dominant allele?
A
lower case
B
it doesn't what type of letter you use
C
capital
4) What term describes the alleles you have for a certain gene?
A
phenotype
B
genotype
5) What term describes the way your alleles make you look?
A
genotype
B
phenotype
6) Which term describes chromosomes that carry the same genes?
A
homologous
B
fraternal
C
homozygous
D
heterozygous
7) What do different genes contain the code to make?
A
fats
B
sugars
C
DNA
D
proteins
8) What are the different forms of a gene called?
A
nucleotides
B
alleles
C
chromosomes
D
genes
9) How many chromosomes are found in a normal human body cell?
A
2
B
92
C
46
D
23
10) How many chromosomes are found in a human sperm cell?
A
92
B
46
C
2
D
23
11) What sex chromosomes make a baby male?
A
YY
B
XY
C
XO
D
XX
12) Brown hair colour is dominant to blonde hair colour. Which of the following would be the correct genotype for someone with blonde hair?
A
BB
B
Bb
C
bb
D
bB
13) Brown eyes is dominant for blue eyes. Which of the following phenotypes could be caused by having the alleles Bb for eye colour?
A
blue
B
brown
14) What are chromosomes made from?
A
tissues
B
proteins
C
cells
D
DNA
15) Where in a cell would you find chromosomes?
A
cytoplasm
B
nucleus
C
ribosomes
D
cell membrane
*select an answer for all questions
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