How the positive and negative DNA markers are used in
A blastomere was removed from an 8-cell human embryo, and
its beta-globin gene was amplified by PCR. The beta-globin
DNA was treated with an enzyme that cuts on either side of
and within the normal allele (producing a small fragment),
but not within the sickle cell allele (producing a large
fragment). Electrophoresis of the treated DNA from the
blastomere demonstrated the presence of both a large and
small fragment derived from the beta-globin genes. How
should you interpret this test?
Does a person diagnosed with turner syndrome have trouble
hearing? please reply if you have this syndrome or know
someone who does.
Flower position, stem length, and seed shape were three
traits that were studied by Mendel. Each is controlled by
an independently assorting gene. If a plant that is
heterozygous for all three traits was allowed to self-
fertilize, what proportion of the offspring would be
expected to show all three dominant phenotypes?
what is the Impact Of Gene Cloning?
Promoters of housekeeping genes contain variable numbers of
GC boxes, but neither TATA nor CCAAT boxes.Inwhat way these
properties of housekeeping promoters are helpful?
what is Regeneration ?
The village of Oblong has 400 normally-shaped residents.
Transferrin is an iron carrier found in blood, and
electrophoretic variation of this protein is determined by
an autosomal codominant system. The citizens of Oblong were
typed for their transferrin complements. The distribution
of transferrin phenotypes was: 100 CC, 100 CD, and 200 DD.
What is the frequency of the C allele?
What is Heterozygote detection?
Consider two linked autosomal genes. The dominant allele C
of the first gene causes cataracts of the eye, whereas its
recessive allele produces normal eyes. The dominant allele
P causes polydactyly (an extra finger) whereas its allele
(p) produces a normal number of fingers. A man with
cataracts and normal fingers marries a woman with
polydactyly and normal eyes. Their son has both polydactyly
and cataracts and he marries a woman with neither trait.
What is the probability that their first child will have
cataracts and polydactyly?
how was highschool like for a person diagnosed with
turner's syndrome? and really difficult subjects?
our hair comes from our mother's father.Is it true or not?