A new wave of flu comes around every season, for the flu virus has a high mutation
rate. But every few decades a flu arises that is so different that it causes a pandemic,
which kills many millions as it circulates the globe. The flu strains that cause epidemics
are recombinant between flus usually found in the following hosts:
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human, avian, swine
b) Which gametes are double recombinant?
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OPQ and opq
, In guinea pigs, white coat (w) is recessive to black coat (W) and wavy hair (v) is
recessive to straight hair (V). A breeder crosses a guinea pig that is homozygous for
white coat and wavy hair with a guinea pig homozygous for both straight and black
hair. The F1 are then crossed with guinea pigs having white coats and wavy hair, and
83 offspring were produced, and the genotypes were placed into a chi-square test of
independence:
The critical value for this test is 3.8 -- calculate the value of chi-square. What would
you conclude from these data and your value of chi-square:
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W and V are on the same chromosome
If the sequence of one strand of DNA is 5'-GCTAGCGTCG-3', what is the sequence of
the complementary strand?
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3'-CGATCGCAGC-5'
A mission to Mars has returned with samples of soil taken from a moist area in an
ancient stream bed. The soil is cultured and strange microbes grow. Chemical
analyses indicate that they have nucleic acids with four different nucleotides, adenine,
uracil, guanine, and cytosine. What hypothesis would you form from this observation?
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The microbes use RNA for their genetic material
rate. But every few decades a flu arises that is so different that it causes a pandemic,
which kills many millions as it circulates the globe. The flu strains that cause epidemics
are recombinant between flus usually found in the following hosts:
Give this one a try later!
human, avian, swine
b) Which gametes are double recombinant?
Give this one a try later!
OPQ and opq
, In guinea pigs, white coat (w) is recessive to black coat (W) and wavy hair (v) is
recessive to straight hair (V). A breeder crosses a guinea pig that is homozygous for
white coat and wavy hair with a guinea pig homozygous for both straight and black
hair. The F1 are then crossed with guinea pigs having white coats and wavy hair, and
83 offspring were produced, and the genotypes were placed into a chi-square test of
independence:
The critical value for this test is 3.8 -- calculate the value of chi-square. What would
you conclude from these data and your value of chi-square:
Give this one a try later!
W and V are on the same chromosome
If the sequence of one strand of DNA is 5'-GCTAGCGTCG-3', what is the sequence of
the complementary strand?
Give this one a try later!
3'-CGATCGCAGC-5'
A mission to Mars has returned with samples of soil taken from a moist area in an
ancient stream bed. The soil is cultured and strange microbes grow. Chemical
analyses indicate that they have nucleic acids with four different nucleotides, adenine,
uracil, guanine, and cytosine. What hypothesis would you form from this observation?
Give this one a try later!
The microbes use RNA for their genetic material
