NEW
Font size
WorksheetsGenetics Review - 7th Grade
Total questions: 20
Worksheet time: 11mins
What do we call a variation of a gene?
geneotype
allele
phenotype
karyotype
This describes an alleles that when it is present, it masks the appearance of other alleles.
recessive
neutral
dominant
pedigree
This allele is expressed when there is no dominant allele present.
dominant
recessive
neutral
pedigree
Having two identical alleles for a particular trait.
heredity
dominant
homozygous
heterozygous
Having two different alleles for a particular trait.
heredity
dominant
homozygous
heterozygous
An organisms allele combination
phenotype
heredity
allele
genotype
The physical appearance or characteristics seen in an organism.
phenotype
heredity
allele
genotype
Who is known as the "Father of Genetics?"
Wilkins
Gregor Mendel
Watson and Crick
Franklin
DNA sequence is: CGA-AAU-GGA.
Which one would should a deletion mutation?
CGA-AAA-UGG-A
CGA-AAG-GA
CGA-AAU-GGA
AGC-AAU-GGA
Which structure carries instructions for producing the proteins that help make a person’s hair curly?
phosphate
lipid
gene
lysosomes
These are the steps for making protein, which one is missing?
1. A strand of RNA is made.
2. RNA leaves the nucleus.
3. RNA moves to the ribosome.
4. A protein is made
DNA unzips before step 1
DNA unzips after step 1
DNA is replicated before step 3
DNA is replicated after step 3
Which is an example of a genotype?
rr
red hair
r
blue eyes
Which one is an example of a phenotype?
rr
Rr
red hair
RR
Which one is an allele?
rr
Rr
r
RR
Which best describes a recessive allele?
does not determine phenotype when a dominant allele for the same trait is present
only determines phenotype when a dominant allele for the same trait is present
never inherited from a parent when a dominant allele is inherited from the other parent
always inherited from a parent when a dominant allele is inherited from the other parent
What is another name for selective breeding?
gene therapy
cloning
artificial selection
genetic engineering
Golden rice was made to give more nutrients, like vitamin A, to those who grow and eat it. Golden rice would be an example of...
cloning
genetic engineering
selective breeding
artificial selection
Which procedure is an attempt to correct a genetic disorder by replacing a mutated gene with a normal allele?
gene therapy
selective breeding
cloning
artificial selection
Which statement describes the blood type of a person with the alleles IAi?
It is type A because i is dominant and A is recessive.
It is type A because A is dominant and i is recessive.
It is type AB because A and i are codominant.
It is type AB because I and i are codominant.
Which word describes these alleles Tt.
homozygous
heredity
heterzygous
phenotype
