WorksheetsGENETICS
Total questions: 27
Worksheet time: 19mins
Two identical alleles for a trait is known as
homozygous
heterozygous
mutation
codominance
A physical appearance is
genotype
heterozygous
phenotype
codominance
Who studied different characteristics of pea plants by cross-pollinating plants?
Gregor Mendel
Albert Punnett
Sir Isaac Newton
David Kuster
What is the probability of producing a tall pea plant from a cross between two hybrid tall pea plants?
25%
50%
75%
100%
A purebred horse with white hair is crossed with a purebred horse with brown hair. Each of their offspring has both white and brown hair. Why does this occur?
several alleles work together to determine a trait
two alleles for hair are dominant
two alleles for hair are recessive
the alleles for fur color are neither dominant or recessive
Genotype is
stem height
feather color
physical appearance
genetic makeup
The term that relates to physical characteristics that are studied in genetics.
traits
offspring
generations
hybrids
Factors that control traits are
purebreds
genes
recessives
parents
A mutation is
any change that is harmful
any change in a gene or chromosome
any change that is helpful
any change in the phenotype
If a homozygous black cat (BB) is crossed with a homozygous white cat (bb), what is the probability of having a cat with white fur?
100%
0%
75%
25%
What does RR mean
two dominant alleles
heterozygous alleles
at least one dominant allele
one dominant and one recessive allele
A mother gives birth to a son, she then gives birth to a daughter. What is the likely hood that she will have another son?
75%
25%
50%
100%
In a DNA molecule, nucleotides are linked together to make up a single strand of DNA then bonded to a second strand. This structure is known as a
RNA
double helix
watson-crick
double nucleotide
During meiosis, one parent cell gives rise to how many daughter cells?
1
2
3
4
The B stands for bud.
Which of the following is caused by gene mutation?
Antara yang berikut, yang manakah disebabkan oleh mutasi gen?
Down’s syndrome/Sindrom Down
Colour blindness /Buta warna
Turner’s syndrome/ Sindrom Turner
Klinefelter’s syndrome/
Sindrom Klinefelter
The following are causes of mutation except
Yang berikut adalah faktor mutasi kecuali
X-ray /Sinaran X
Gamma rays radiation / Radiasi sinaran gama
Sodium chloride/ Natrium klorida
Chemicals such as nicotine and pesticides /
Bahan kimia seperti nikotina dan pestisid
What is the advantage of mutation?
Apakah keburukan mutasi? Boleh menyebabkan .....
What is the diadvantage of mutation? Can cause .....
penyakit jantung/heart disease
penyakit kulit/skin disease
penyakit baka/genetic disease
penyakit kanser/ cancer
What is the meaning of mutagene?
