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A woman is know to be carrying a severe recessive autosomal gene. It is possible to determine whether a cell or poloar body is carrying the normal or dissorder recessive. The detection procedure destroys the ovum.
She has opted for in vitro fertilization so the the egg and sperm can be united in a test tube. To avoid having to select a normal embryo and destroy others, she wants to be certain the egg is not carrying the mutation. It is possible to have the oocyte continue meiosis in a test tube.
What would you want to see in the poloar body at the first meiotic division? What would you want to see in the second meitoic division? You must be able to diagram oogenesis and segregation of the genes. Do not give probabilities, only certainy.
In what way are most segment polarity genes different from other genes in the genetic cascade? (other genes: maternal effect genes,gap genes, pair rule genes, homeobox genes)
A Drosophila researcher has recently isolated a number of mutant fruit flies. The phenotype of each mutant is described below (i–iv). For each mutant, describe the type of gene (maternal-effect gene, gap gene, segment-polarity gene, or homeotic ge..
Why are control cultures necessary in evaluating disinfectants ?
What are two domains that that all eukaryotic transcription factors must have? Describe the function of each of these. What are two other domains that transcription factors can have.
Describe the major mechanisms for stimulation of gastric acid secretion and inhibition in cephalic, gastric and intestinal phases and describe the absorption process of the products of lipid digestion.
water and carbon are major components of all life. describe the characteristics of these materials which make them so
What are the characteristics of life? There are some things, like planets, stars, viruses and prions that have many of the characteristics of life, but are not alive.
you are interested in integrin activation and perform mutagenesis studies on integrin. you find a mutant form of
What is hydrogenase? How can this enzyme be used as part of a strategy to "improve" a Rhizobial strain used to inoculate legumes? Describe logic and provide the appropriate diagram.
A clinical trial is organized to compare an experimental medication designed to lower blood pressure to a placebo. Before starting the trial, a pilot study is conducted involving ten participants.
why do scientists measure carbon dioxide levels from a mountain on top of the big island of hawaii ?
age gender resting heart rate height weight body fat 14 male 70 bpm 510 120 pounds 10 chris is a high school student
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