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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
capital
C
it doesn't what type of letter you use
4) What term describes the alleles you have for a certain gene?
A
genotype
B
phenotype
5) What term describes the way your alleles make you look?
A
phenotype
B
genotype
6) Which term describes chromosomes that carry the same genes?
A
fraternal
B
homozygous
C
homologous
D
heterozygous
7) What do different genes contain the code to make?
A
DNA
B
proteins
C
fats
D
sugars
8) What are the different forms of a gene called?
A
alleles
B
genes
C
chromosomes
D
nucleotides
9) How many chromosomes are found in a normal human body cell?
A
23
B
2
C
92
D
46
10) How many chromosomes are found in a human sperm cell?
A
2
B
46
C
92
D
23
11) What sex chromosomes make a baby male?
A
XX
B
XO
C
YY
D
XY
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
cells
B
tissues
C
DNA
D
proteins
15) Where in a cell would you find chromosomes?
A
cell membrane
B
nucleus
C
cytoplasm
D
ribosomes
*select an answer for all questions
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