18 Questions
What is a major limitation of using humans as research subjects in genetics?
Their long life cycle
Which of the following is NOT a method used to study human genetics?
Randomized controlled trials
What can be detected through karyotyping?
Numerical and structural abnormalities
What type of inheritance pattern is characterized by the trait never skipping a generation?
Autosomal Dominant
What is the primary method used in human genetics?
Pedigree Analysis
What type of marriage would produce offspring that are also affected by the trait?
Marriage between two affected individuals
What is the characteristic of metacentric chromosomes in terms of centromere position?
centromeres in the middle of the chromosome
Which group of human chromosomes has a medium size and acrocentric centromere location?
Group D
What is the chromosomal composition of Turner's Syndrome?
22II+ X0
Which type of chromosomal aberration is characterized by 22II+ I21+ XX or XY?
Down's Syndrome
What is the centromere location of chromosomes in Group G?
acrocentric
Which of the following chromosomal aberrations is characterized by 22II+XXX?
Metafemale
What is the key characteristic of Autosomal Dominant inheritance?
No skipping of generations is observed
What is the most likely explanation for the occurrence of cystic fibrosis in a population?
Matings between heterozygotes
What is the pattern of inheritance observed in Sex-linked Recessive traits?
Affected families with unaffected husbands transmit the trait to sons only
What is the key difference between Autosomal Dominant and Autosomal Recessive inheritance?
The presence of skipping of generations
What is the probability of having a child with an autosomal recessive disorder if both parents are carriers of the gene?
1 in 4
What is the reason for increased consanguinity between parents in Autosomal Recessive Disorders?
Because most matings are with relatives
This quiz covers the reasons why humans are unsuitable research subjects and the methods used to study human genetics, including pedigree analysis and karyotyping.
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