2.3

Question 1

What are congenital anomalies?

Answer 1

Birth defects

Question 2

True or false: Many genetic anomalies are not passed along during cell division, since the mutated cell is not viable and simply dies

Answer 2

True

Question 3

refers generally to the many different conditions that can result from problems with an individual’s DNA

Answer 3

Genetic disorders

Question 4

In other cases, genetic problems are caused by the presence of specific genes that

Answer 4

cause development to proceed in a non-normal manner.
ex. PKU

Question 5

Often, sex-linked genetic disorders occur via

Answer 5

dominant–recessive genetic patterns

-much more likely to be expressed as the phenotype in males than in females because the Y chromosome has no allele that might counteract the gene.
ex. male patter baldness

Question 6

What are 2 examples of geneticsex-linked disorders?

Answer 6

Color blindness- recessive disorder that occurs in almost 1 in 12 males.

Hemophilia A and B-recessive disorders

Question 7

What are some examples of chromosomal sex-linked disorders

Answer 7

• Fragile X syndrome
  -Klinefelter
  -Superfemale syndrome
• Supermale syndrome
  -Turner syndrome

Question 8

What are some examples of genetic autosomal disorders?

Answer 8

-. Angleman
-cystic fibrosis
- Huntington disease
-PKU
-Prader-Willi syndrome
-Sickle cell trait and sickle-cell anemia
- Tay sachs

Question 9

Exaples of chromosomal autosomal diseases

Answer 9

Down syndrome

Question 10

gene imprinting

Answer 10

which parent a gene comes from can have a profound impact on how that gene is expressed

Question 11

Gene imprinting can result from several problems. Examples

Answer 11

one parent’s genes are defective; in other cases, the child receives both alleles from the same parent

Question 12

DNA is found in

Answer 12

the nuclei and mitochondria of cells