Please answer all questions

1		The best view of chromosomes to be used in karyotyping come from cells in anaphase of mitosis.
			A)	True
			B)	False
2		A syndrome is a group of symptoms that always occur together.
			A)	True
			B)	False
3		Having 3 copies of a particular chromosome is called trisomy.
			A)	True
			B)	False
4		The chances of survival are greater if nondisjunction occurs with the sex chromosomes than with autosomes.
			A)	True
			B)	False
5		The gene for mental retardation is the Down's gene.
			A)	True
			B)	False
6		Poly - X females are generally normal in appearance.
			A)	True
			B)	False
7		Jacobs syndrome results from nondisjunction during oogenesis.
			A)	True
			B)	False
8		Chromosomal mutations occur when chromosomes suffer breaks.
			A)	True
			B)	False
9		Various environmental agents can cause chromosomal mutations.
			A)	True
			B)	False
10		Cri du chat involves a missing end from chromosome 7 and results in a cat-like crying.
			A)	True
			B)	False
11		A chart of a family's history concerning a certain genetic trait is a pedigree.
			A)	True
			B)	False
12		In an autosomal recessive disorder, one parent is affected along with the child.
			A)	True
			B)	False
13		In order for a child to be affected with an autosomal disorder, both parents would need to be carriers of the gene.
			A)	True
			B)	False
14		If the child is unaffected by an autosomal disorder, but both parents are affected, it is called autosomal dominant disorder.
			A)	True
			B)	False
15		More males have X-linked recessive disorders because the Y-chromosome lacks the allele.
			A)	True
			B)	False
16		If a woman has an X-linked recessive disorder, half of her sons will have it also.
			A)	True
			B)	False
17		In an X-linked dominant disorder, fathers pass it only to their sons.
			A)	True
			B)	False
18		Y-linked disorders are passed from father to son.
			A)	True
			B)	False
19		Sickle-cell disease is caused by the substitution of 1 amino acid that is critical for the biconcave disk shape of red blood cells.
			A)	True
			B)	False
20		Marfan syndrome's symptoms include a dislocated lens, long limbs, and a weak aorta.
			A)	True
			B)	False
21		Familial hypercholesterolemia (FH) gives mutated membrane receptors of HDLs.
			A)	True
			B)	False
22		Color-blindness is an X-linked dominant disorder affecting mostly males.
			A)	True
			B)	False
23		Genetic markers, or abnormal DNA sequences, can be tested for genetic disorders.
			A)	True
			B)	False
24		Eggs and embryos can be tested as part of in vitro fertilization and only normal embryos are transferred to the uterus.
			A)	True
			B)	False
25		The human genome has been sequenced.
			A)	True
			B)	False
26		Genetic profiling tells how a person's genome differs from normal.
			A)	True
			B)	False
27		In vitro gene therapy involves removing tissue or cells, infecting them with a retrovirus containing the proper gene sequence, and returning the treated cells to the body.
			A)	True
			B)	False