Answer $"$T$"$ for true or $"$F$"$ for false:

T F The genomes of all humans contain ~$4\%$ of Neanderthal genes.

T F The genomes of all humans contain ~$5\%$ of Denisovan genes.

T F Transversion mutations are the most frequent point mutations in humans.

T F Neanderthals and Denisovans had $46$ chromosomes.

T F Only trisomy of autosomes chromosomes $13,18,$ and $21$ occurs in newborns.

T F Polyploidy is a frequent chromosomal abnormality in humans.

T F An individual with a karyotype $46,$XX has $3$ Barr bodies.

T F Patau syndrome in humans results from trisomy of chromosome $18.$

$.$ T F There are two possible genetic ways to generate children with Down syndrome.

T F Turner syndrome in humans results from trisomy of chromosome $13.$

T F The NORB$1($DAX protein$)$ gene is a transcriptional inhibitor of the expression of the

SOX$9$ gene.

T F Duplication of the NORB$1$ gene in the X chromosome results in sex reversal in the male.