Biol 133 Chapters 12-15 study questions with
correct answers
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? - verified answers; Lethal early in development
What is the difference between a karyotype and a karyogram? - verified answers; 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.
Your study partner is confused. "I thought Watson and Crick discovered genes-who are all
these other people?" Help out by matching each discovery with the scientist(s) who made it. -
verified answers; Mendel-traits arise from discrete units wthat remain unchanged even when
not exhibited
Boveri and Sutton-Genes are carried on chromosomes
Morgan-Genes nearby on a chromosomes are linked, but can become unlinked by
recombination
Watson and Crick-DNA has a double helical structure
Punnett-Developed a technique for predicting the outcome of crosses
Why do so many geneticists focus on studying yeast, fruit flies, nematodes, mice or the small
plant Arabidopsis? - verified answers; They have multiple features that allow for cheap, fast
and efficient manipulation of genes and chromosomes.
Which is likely to disrupt the function of the most genes: a 500kb deletion, a 500kb inversion,
or a 500kb translocation? - verified answers; deletion
, If the parents are AABBCC X aabbcc, what would represnt the parental gametes? Select all
that apply. - verified answers; abc
ABC
Nondisjunction during meiosis I will resut in - verified answers; n+1 and n-1
A karyogram that contains 23 pairs of chromosomes with a different pair of the 23rd pair
would describe a(n) - verified answers; male
The most common time individual assortment occurs is when genes are? - verified answers;
unlinked
Combination of alleles that independently assort is usually higher than the number of
chromosomes because - verified answers; crossing over
Chargaff's rule is supported by what statement? - verified answers; A+G=T+C
If a DNA sample from an unknown organism has telomerase, the organism - verified answers;
is eukaryotic
An experiment started with 15N15N DNA. After two generations in 14N medium, E. coli will
have - verified answers; 50% 15N14N and 50% 14N14N
What creates fragments on the lagging strand - verified answers; DNA polymerase III
Why do purines have to pair with a pyrimidine? - verified answers; The distance between the
two phophodiester backbones remain constant.
correct answers
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? - verified answers; Lethal early in development
What is the difference between a karyotype and a karyogram? - verified answers; 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.
Your study partner is confused. "I thought Watson and Crick discovered genes-who are all
these other people?" Help out by matching each discovery with the scientist(s) who made it. -
verified answers; Mendel-traits arise from discrete units wthat remain unchanged even when
not exhibited
Boveri and Sutton-Genes are carried on chromosomes
Morgan-Genes nearby on a chromosomes are linked, but can become unlinked by
recombination
Watson and Crick-DNA has a double helical structure
Punnett-Developed a technique for predicting the outcome of crosses
Why do so many geneticists focus on studying yeast, fruit flies, nematodes, mice or the small
plant Arabidopsis? - verified answers; They have multiple features that allow for cheap, fast
and efficient manipulation of genes and chromosomes.
Which is likely to disrupt the function of the most genes: a 500kb deletion, a 500kb inversion,
or a 500kb translocation? - verified answers; deletion
, If the parents are AABBCC X aabbcc, what would represnt the parental gametes? Select all
that apply. - verified answers; abc
ABC
Nondisjunction during meiosis I will resut in - verified answers; n+1 and n-1
A karyogram that contains 23 pairs of chromosomes with a different pair of the 23rd pair
would describe a(n) - verified answers; male
The most common time individual assortment occurs is when genes are? - verified answers;
unlinked
Combination of alleles that independently assort is usually higher than the number of
chromosomes because - verified answers; crossing over
Chargaff's rule is supported by what statement? - verified answers; A+G=T+C
If a DNA sample from an unknown organism has telomerase, the organism - verified answers;
is eukaryotic
An experiment started with 15N15N DNA. After two generations in 14N medium, E. coli will
have - verified answers; 50% 15N14N and 50% 14N14N
What creates fragments on the lagging strand - verified answers; DNA polymerase III
Why do purines have to pair with a pyrimidine? - verified answers; The distance between the
two phophodiester backbones remain constant.
