30 Questions
Which of the following is NOT a disorder screened for in newborns in the U.S.?
Cystic Fibrosis
What is the purpose of the Newborn Screening test?
To identify genetic disorders in newborns
Who is considered the founder of genetics?
Mendel
What is the OMIM database used for?
Identifying genetic disorders in humans
What is the aim for the week mentioned in the text?
To understand the figures, plots, and charts used in scientific literature for human biology
Which of the following accurately describes the process of fertilization in humans?
The sperm and egg fuse to form a zygote
Which statement about genes and chromosomes is correct?
Chromosomes are analogous to words in an instruction manual
What is the purpose of DNA replication?
To produce duplicate DNA molecules
Which of the following best describes a mutant allele?
It functions differently than the original allele
What is the purpose of independent assortment during meiosis?
To ensure the segregation of alleles into different gametes
Which of the following blood types can receive blood from any other blood type?
Type AB
Which of the following blood types can donate blood to any other blood type?
Type O
Which of the following statements about sex-linked traits is true?
Males are more likely to express X-linked traits
Which of the following diseases is more common in males than females?
Red-green colorblindness
In which type of organisms is sex determination based on the incubation temperature of the egg?
Egg-laying reptiles
Which of the following accurately describes the genetic composition of sperm and egg cells?
Sperm and egg cells each have one full set of chromosomes.
What is the total number of possible chromosome combinations in gametes due to independent assortment?
64 trillion
Who is considered the first genetic scientist?
Gregor Mendel
What is the term for the physical traits of an individual?
Phenotype
Which of the following accurately describes carriers of a recessive disease?
Carriers can pass the trait to the next generation.
According to the text, what is the mode of inheritance for a dominant trait?
Autosomal dominant
In a pedigree, what do plain or shaded circles and squares represent?
Affected individuals
What is the probability of Charles and Sarah having a child with Tay Sachs if Sarah's sister has Tay Sachs?
50%
What is the mode of inheritance for a recessive trait in a pedigree?
Autosomal recessive
What process do David and Ruth undergo to produce gametes?
Meiosis
Which of the following is an example of incomplete dominance?
Flower color in snapdragons
How is sickle cell inherited?
Through recessive inheritance
What is the phenotypic ratio resulting from a dihybrid cross between two individuals with genotypes RrYy?
9:3:3:1
What is the most common recessive disease in Europeans?
Cystic fibrosis
What is the average lifespan of individuals with cystic fibrosis?
40 years
This quiz explores the concept of carriers of X-linked recessive traits and how unaffected females can pass on the X-linked allele to their sons. Topics covered include possible types of eggs and the inheritance patterns of unaffected females and carrier females.
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