Font size
Worksheets3.4 Inheritance
Total questions: 20
Worksheet time: 40mins
What is a chromosome?
deoxyribonucleic acid, a self-replicating material which is present in nearly all living organisms. It is the carrier of genetic information.
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a DNA strand
your complete heritable genetic identity
A chromosome that is not directly involved in determining sex, as opposed to a sex chromosome is called a _________.
autosome
chromosome
allele
karyotype
a genetic trait that is expressed in a person who has only one copy of the gene associated with the trait
genotype
phenotype
recessive trait
Dominant trait
one of the pair of chromosomes responsible for determining the sex of an individual
karyotype
sex chromosome
genotype
pedigree
_________ is the genetic make-up of an individual organism. Your ____________ functions as a set of instructions for the growth and development of your body.
Phenotype
Genotype
Karyotype
Chromosome
What is this a picture of? Hint: Its an organized picture of your Chromosomes.
electrophoresis
denaturing
Karyotyping
Autosomes
______________ is the observable physical or biochemical characteristics of an individual organism, determined by both genetic make-up and environmental influences
Genotype
Phenotype
Karyotype
Chromosome
A condition that appears only in individuals who have received two copies of a mutant gene, one copy from each parent.
recessive trait
mutation
sex chromosome
anemia
What is an Allele?
An allele is a viable DNA (deoxyribonucleic acid) coding that occupies a given locus (position) on a chromosome
An allele is a viable chromosome (deoxyribonucleic acid) coding that occupies a given locus (position) on a protein
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of DNA
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
having two different alleles of a particular gene or genes.
homozygous
recessive trait
heterozygous
zygote
having two identical alleles of a particular gene or genes
homozygous
heterozygous
dominant trait
zygote
Why does sickle cell disease run in families, yet is not present in every generation?
It is dominant, so for a person to have it, the person must inherit the gene from both parents.
It is recessive, so for a person to have it, the person must inherit the gene from both parents.
It is recessive, so for a person to have it, the person must inherit the gene from one parent.
It is not hereditary. Sickle Cell is is random and people randomly get it.
How can doctors and genetic counselors calculate the probability of a child inheriting a disease?
They can calculate this by creating Punnett squares from the genotypes of the parents.
They can calculate this by creating Punnett squares from the phenotypes of the parents.
They can calculate this by creating a pedigree from the genotypes of the parents.
They can calculate this by creating a pedigree from the phenotypes of the parents.
How does the presence of malaria in a region affect the frequencies of normal versus sickle cell alleles?
Malaria attaches to lymphocytes, and since in sickle cells these are misshapen, the malaria can't survive. This means that if malaria does become present, the body has more time to fight the infection.
Malaria attaches to red blood cells, and since in sickle cells these are misshapen, the malaria has more space to thrive. This means that malaria will run out of hosts faster and kill itself.
Malaria attaches to red blood cells, and since in sickle cells these are misshapen, the malaria can't survive. This means that if malaria does become present, the white blood cells will contract the disease instead.
Malaria attaches to erythrocytes, and since in sickle cells these are misshapen, the malaria can't survive. This means that if malaria does become present, the body has more time to fight the infection.
What is this a picture of? What gender is III4?
Pedigree, Female
Pedigree, Male
Punnett Square, Female
Punnett Square, Male
How are Pedigrees used to track diseases?
To predict the probability of the offspring having the disease by shading in the individuals affected by hypercholesterolemia that is transmitted genetically
To predict the probability of the offspring having immunity to a disease by using a punnet square
To predict the probability of the offspring having the disease by shading in the individuals affected by a disease that is transmitted genetically.
To predict the probability of the offspring having the disease by using a punnet square
Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a white offspring in a cross between two heterozygous guinea pigs. (Use a Punnett square!)
0%
25%
50%
75%
Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a white offspring in a cross: Bb x bb (Use a Punnett Square!)
25%
50%
75%
100%
Fill in the blank square. What is your probability of getting that genotype?
rr, 50%
Rr, 25%
Rr, 50%
rr, 25%
Fill in the blank squares. (there are 2 answers)
RrTT
RRTt
rrTT
rrTt
