WorksheetsExam: Genetics
Total questions: 20
Worksheet time: 10mins
Human body cells each have 46 chromosomes in the nuclei. Meiosis is necessary in order to ensure that each gamete produced in the human body has –
12 chromosomes
23 chromosomes
46 chromosomes
92 chromosomes
Which of the following combinations give the alleles of the parents?
RR and RR
Rr and Rr
RR and Rr
RR and rr
Which of the following molecules provides a set of instructions for traits?
Carbohydrates
Chlorophyll
Mitochondria
DNA
A homozygous genotype has
two alleles that are the same
two alleles that are different
A heterozygous genotype has
two alleles that are the same
two alleles that are different
Who was the "Father of Genetics"?
Henrietta Lacks
Watson and Crick
Gregor Mendel
Zack Morris
A Punnett square is used to:
determine traits a person might have
determine the discrete units of chromosomes
give the probability of an offspring having particular traits
provide answers to math problems
Define Phenotype:
The outward, physical appearance of an organism
A homozygous trait
A variant form of a gene
The genetic, inheritable information of an organism
Define Genotype:
The study of biological inheritance patters and variation
A simple diagram used to determine probability of traits
The outward, physical appearance of an organism
The genetic, inheritable information of an organism
When an allele shows their effect even if there is only one cope of the allele this trait is considered:
recessive
dominate
variant
complete
Fill in the missing offspring
SS
Ss
ss
C pairs with
A
T
G
C
T pairs with
A
C
G
T
TAC
ATG
TTT
GTA
CAT
TAG CCT ACG
(a)
True or False: DNA is found in ALL organisms
True
False
