WorksheetsGenetics Quiz
Total questions: 18
Worksheet time: 12mins
How many chromosomes does a human somatic (body) cell have?
23
46
54
38
Where in cell is the DNA found?
Nucleus
Organelle
Gene
Cytoplasm
How many chromosomes are found in human gametes (eggs & sperm)?
212
23
100,000 approx
46
Meiosis is a cell division process which produces cells that have half the number of chromosomes.
Once a cell undergoes Meiosis, how many 'daughter' cells are produced?
1
2
3
4
Factors that control traits are called. . .
Genes
Nucleus
Recessives
Parents
If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb),
what is the probability that an offspring will have black fur?
25%
50%
75%
100%
If a heterozygous black guinea pig (Bb) is crossed with another heterozygous black guinea pig (Bb), what is the probability that an offspring will have white fur?
0%
15%
25%
50%
The different forms of a gene are called
alleles
factors
masks
traits
An organism that has two identical alleles for a trait is
codominant
lucky
homozygous
heterozygous
Which combination of sex chromosomes results in a male human?
XX
XY
YY
XX or YY
No two people have the same DNA, except for
crime suspects
brothers
identical twins
sisters
Which of the following best defines the term, 'gene'?
a heritable factor that consists of a length of DNA and influences many characteristics
a heritable factor that consists of a length of mRNA and influences many characteristics.
a heritable factor that consists of a length of DNA and influences a specific characteristic
a heritable factor that consists of a length of mRNA and influences a specific characteristic
The roundworm (Caenorhabditis elegans) has a diploid chromosome number of 12. How many chromosomes would be in a haploid roundworm cell?
24
12
6
none of the above
The DNA in the skin cells of your hand is significantly different in sequence from the DNA in your liver cells.
TRUE
FALSE
What is the corresponding strand of this DNA segment:
TAC GGC
TAC GGC
ATG CCG
CTG AAG
GTA CCA
Is the following human Karyotype, male or female?
Male
Female
Hornless (H) in cattle is dominant over horned (h).
What is the genotype of a homologous hornless bull?
HH
hh
Hh
HH or hh
Hornless (H) in cattle is dominant over horned (h).
What is the phenotype of a heterozygous bull?
Hornless
Horned
