Inheritance and genetic disorders
Which of the following is a genetic disorder?
A
Cystic fibrosis
B
Malaria
C
Asthma
D
Diabetes
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Lesduur is: 20 minOnderdelen in deze les
Which of the following is a genetic disorder?
A
Cystic fibrosis
B
Malaria
C
Asthma
D
Diabetes
Slide 1 - Quizvraag
What is a Punnett square used for in genetic inheritance?
A
Measuring the genetic diversity within a population
B
Predicting the possible outcomes of a genetic cross
C
Identifying recessive traits in an individual
D
Determining the dominant gene in an organism
Slide 2 - Quizvraag
Which is NOT true about a carrier for a genetic disorder?
A
They are heterozygous for the disorder.
B
They have the disorder.
C
They had at least one They have atleast one parent with the disorder.
D
They may have siblings that have the disorder
Slide 3 - Quizvraag
What is the main cause of cystic fibrosis?
A
Viral mutation
B
Bacterial infection
C
Defective CFTR gene
D
Environmental factors
Slide 4 - Quizvraag
Which is NOT true about pedigrees?
A
They show only recessive disorders
B
They can be used to predict disorders in a family.
C
They indicate the sex of an individual.
D
They are useful in inferring genotypes of individuals.
Slide 5 - Quizvraag
What is a recessive gene?
A
A gene that is always expressed
B
A gene that is only expressed in the absence of its dominant counterpart.
C
A gene that is unrelated to dominant genes
D
A gene that is only expressed in the presence of its dominant counterpart
Slide 6 - Quizvraag
How are recessive genes represented in genetic diagrams?
A
By uppercase letters
B
By lowercase letters
C
By special characters
D
By numerical symbols
Slide 7 - Quizvraag
What is the likelihood of expressing a recessive trait when an individual carries two recessive alleles?
A
100%
B
50%
C
25%
D
0%
Slide 8 - Quizvraag
What are alleles?
A
Mutated chromosomes
B
Segments of DNA
C
Genetic mutations
D
Different forms of a gene
Slide 9 - Quizvraag
How many alleles do individuals inherit for each gene?
A
Three alleles
B
Two alleles
C
Four alleles
D
One allele
Slide 10 - Quizvraag
What is the term for alleles that are the same?
A
Homozygous alleles
B
Recessive alleles
C
Heterozygous alleles
D
Dominant alleles
Slide 11 - Quizvraag
What term is used to describe the physical appearance resulting from the combination of alleles?
A
Genotype
B
Genetic code
C
Phenotype
D
Chromosomes
