SOLUTIONS GRADED A+
◉ Phenotype. Answer: ways in which genes are outwardly
expressed, such as eye color, hair color, or height
◉ Autosomal-Recessive Disorders. Answer: -Cystic Fibrosis
-Sickle Cell Anemia
-Thalassemia
-Tay-Sachs disease
◉ Autosomal-Dominant Disorders. Answer: -Huntington's disease
-familial hypercholesterolemia
-Xeroderma pigmentation
◉ Autosomal Dominant. Answer: -affected person has affected
parent
-50% change of passing the trait
-males & females equally affected-dad can pass to son
◉ Autosomal Recessive. Answer: -can have clinically normal parents,
but both parents must be carriers
,-25% chance of affected child
-50% chance child is carrier
-males & females affected equally
◉ Risk Factors for having a child with a genetic disorder:. Answer: -a
maternal age older than 35
-a history of previous pregnancy resulting in a genetic disorder or
newborn abnormalities
-one or both partners having a genetic disorder
-a family history of a genetic disorder
◉ Menstrual Cycle. Answer: Composed of:
-Ovarian cycle
-Endometrial cycle
◉ Ovarian Cycle. Answer: Composed of:
-Follicular Phase
-Ovulatory Phase
-Luteal Phase
◉ Follicular Phase. Answer: -begins the first day of menstruation
and lasts 12-14 days
, -graafian follicle matures under the influence of luteinizing hormone
(LH) & follicle-stimulating hormone (FSH)
-maturing graafian follicle produces estrogen
◉ Ovulatory Phase. Answer: -begins when estrogen levels peak and
ends with the release of the oocyte (egg) from the mature graafian
follicle
-release of the oocyte is called "ovulation"
-before this surge, estrogen levels decrease and progesterone levels
increase
◉ Luteal Phase. Answer: -begins after ovulation and lasts about 14
days
-cells of the empty follicle morph to form the corpus luteum, which
produces high levels of progesterone and low levels of estrogen
-if pregnancy occurs: corpus luteum releases progesterone and
estrogen until the placenta matures enough to assume this function
-if pregnancy does not occur: corpus luteum degenerates, resulting
in a decrease in progesterone and the beginning of menstruation
◉ Endometrial Cycle. Answer: Composed of:
-Proliferative Phase
-Secretory Phase
-Menstrual Phase