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Very few genes have been located on the Y chromosomes of humans. Y-linked genes include a gene called testis-specific protein Y. A male with this gene will  

There is a rare disease called ptosis which results in the affected individual being unable to completely open their eyes. (I’m not making this up!)  The condition is caused by an autosomal dominant allele P.  A woman who has ptosis marries a man with normal eyelids.  The woman’s father had ptosis, but her mother had normal eyelids.  Her father’s mother (her grandmother) had normal  eyelids.  What is the genotype of the woman’s paternal grandmother? [1] What must be the phenotype of her paternal grandfather? [2] What proportion of the women’s children is expected to have ptosis? [3]

In cocker spaniels, black color (B) is dominant over red (b), and solid color (S) is dominant over spotted (s). If the genes are unlinked, and the offspring of BBss and bbss individuals are mated with each other, what fraction of the F2 generation will be black and spotted?  

Two individuals of genotypes AAbb and aaBB, respectively, mate with one another and produce an F1 offspring. If the two loci (A and B) are very closely linked, what will be the genotypes of most of the gametes produced by the F1 individual? (hint: think about what the chromosomes look like in the parents and F1).

A man with straight hair and a woman with curly hair get together and have quadruplets!  All of them have wavy hair.  What does this tell you about the nature of the hair type alleles?

The structure at “H” is the _______ . “J” is pointing to the _______ . “C” is pointing to the _______ . “D” is pointing to the _______ knob. “B” is pointing to the _______ .The arrow at “G” is pointing to the _______ knob

This area marked off by #1 in this slide shows a type of tissue called:  _______ tissue.  The line labelled “A” is pointing to the _______

This is an image of _______ connective tissue (be specific) with the line at “A” pointing to the nuclei of _______ (a type of cell that “lives” in this tissue.)

In cocker spaniels, black color (B) is dominant over red (b), and solid color (S) is dominant over spotted (s). If the genes are unlinked, and the offspring of BBss and bbss individuals are mated with each other, what fraction of the F2 generation will be black and spotted?  

“A” pointing to a _______ while the line at “B” is pointing to the  _______