Should there be a policy that bans all human embryonic and fetal testing and research?

Should there be a policy that bans all human embryonic and fetal testing and research?

Nondisjunction

Meiotic nondisjunction events will create aneuploid gametes. Describe (with figures) normal Drosophila male meiotic segregation of the sex chromosomes. Then describe all possible outcomes if a Meiosis-I nondisjunction occurs; then do the same for Meiosis-II nondisjunction.

Pedigree

(See attached file for full problem description and diagrams) --- Consider the following five family pedigrees below chosen for study because: 1) two rare conditions are segregating; scaly elbows (X symbol) and a liver disease (filled symbol). 2) the families are large in size. a) What is the mode of inheritance of scaly elbows? b) What is the mode of inheritance of the liver disease? c) Use symbols to describe the genotypes of all five sets of parents. d) Do you see evidence of linkage? Quantitative if possible. (Careful, not every family may be informative here)... (See diagram in attachment)

Probability - A woman of blood type A and normal color vision...

A woman of blood type A and normal color vision produced five children as follows: a)male, blood type A, color blind b)male, blood type O, color blind c)female, type A, color blind d)female, type B, normal vision e)female, type A, normal vision of the two men that mated with this woman at different times, man #1 is blood type AB and color blind, while man #2 is blood type A and normal. for each child, which of the men is the most probable father? (color blindness is an X-linked recessive allele, and that the blood type alleles Ia, Ib, and i are autosomal.

Genetics

1) In a tetrad analysis of a new ascomyete, you are observing a difference in phenotype between spores- some haploid spores are shaped like a square/cube (S) while other spores are round (r). when a square-spored strain is crossed with a round-spored strain, you observe 698 asci with the pattern (SSSSrrrr), 245 asci with the pattern (SSrrSSrr), 122 asci with the pattern (SSrrrrSS), and 124 asci with the pattern (rrSSSSrr). what is the recombination frequency? how far is this gene from the centromere? 2) You observed 15 asci with the pattern (SSSrSrrr). what happened? draw the recombination event (neatly please).