BIOL 133 (13) Questions with CORRECT Answers
Question:
Serious disease syndromes are associated with trisomy of chromosome 21 (Down
syndrome), 18 (Edwards syndrome) and 13 (Patau syndrome). What is the result of
trisomy of the other chromosomes?
Answer:
Lethal early in development
Question:
What is the difference between a karyotype and a karyogram?
Answer:
Karyotypes describe the number of chromosomes and what they look like (size bands
and centromere placement). Karyograms is the study of a whole set of chromosomes
arranged in pairs by size and position of centromere.
Question:
Why do so many geneticists focus on studying yeast, fruit flies, nematodes, mice
or the small plant Arabidopsis?
Answer:
They have multiple features that allow for cheap, fast and efficient manipulation
of genes and chromosomes.
Question:
Chargaff's rule is supported by what statement?
Answer:
A+G=T+C
Question:
An experiment started with 15N15N DNA. After two generations in 14N medium, E.
coli will have
Answer:
50% 15N14N and 50% 14N14N
Question:
Serious disease syndromes are associated with trisomy of chromosome 21 (Down
syndrome), 18 (Edwards syndrome) and 13 (Patau syndrome). What is the result of
trisomy of the other chromosomes?
Answer:
Lethal early in development
Question:
What is the difference between a karyotype and a karyogram?
Answer:
Karyotypes describe the number of chromosomes and what they look like (size bands
and centromere placement). Karyograms is the study of a whole set of chromosomes
arranged in pairs by size and position of centromere.
Question:
Why do so many geneticists focus on studying yeast, fruit flies, nematodes, mice
or the small plant Arabidopsis?
Answer:
They have multiple features that allow for cheap, fast and efficient manipulation
of genes and chromosomes.
Question:
Chargaff's rule is supported by what statement?
Answer:
A+G=T+C
Question:
An experiment started with 15N15N DNA. After two generations in 14N medium, E.
coli will have
Answer:
50% 15N14N and 50% 14N14N
