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A young couple is planning to have children. Knowing tha tthere have been a substantial number of stillbirths, miscarrages,and fertility problems on the husband's side of the family, they see a genetic counselor .A chromosome analysis reveals that, whereasthe woman has a normal karyptype, the man possesses only 45chromosomes and is a carrier for a Robertsonian translocation betweenchromosomes 22 and 13.
a) List all the different types of gametes that might beproduced by the man.b) What types of zygotes will develop when each of the gametesproduced by the man fuses with a normal gamete from the woman?c) If trisomes and monosomes entailing chromosomes 13 and 22are lethal, what proportions of the surviving offspring will becarriers of the translocation?
Deletion of death domain of Fas death receptor. Mutational change to Fas ligand that prevents its oligomerization. Deletion of the death effector domain of FADD. Deletion of the death effector domain of procaspase-8.
There is evidence that viruses are important in providing a way to obtain nutrients from dying organisms that lysed after viral infection. Find specific examples of ways in which viruses might play vital roles in ecosystems.
What type of bond is formed by an atom with four electrons in its outermost shell?
An organism's genome contains four pairs of chromosomes. Assuming that crossing over does not occur, how man unique gamete types can be produced in this organism? What is the probability that a gamete will contain all of the paternal chromosomes?
In a certain mosquito, golden bodies is a recessive X-linked mutation, and brown eyes is a recessive autosomal-linked mutation. A homozygus xx female with golden body is mated with a homozygus XY male with brown eyes.
1 what are the three major species of staphylococcus? why one of them is more pathogenic compared to the other two
What is signal transduction? and why are secondary messengers involved in signal transduction? For what added function do they serve?
Describe the process of pulmonary ventilation, the subsequent changes in partial pressures, and how that relates to the exchange of gases both in pulmonary and systemic circulation.
Why do we preserve a particular species? Because of its value to the conservation of overall biodiversity, or because of an intrinsic right to exist?
Why do bacteria secrete proteins? Select one: a. It is a strict requirement for function and to manipulate their environment b. To manipulate their environment and breakdown host target cells c. To change the host cell into a different type of cel..
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.
what type of channel is on the axon hillock of a postsynaptic cell? A. ligand gated B. voltage gated Na+, K+ C. voltage gated Na+, K+, Ca2+ D. none
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