Term
T or F regarding meiosis:
gametes undergo 2 rounds of cell division |
|
Definition
|
|
Term
T or F regarding meiosis:
crossover occurs , which allows for genetic diversity |
|
Definition
|
|
Term
T or F regarding meiosis:
the DNA replicates before both meiosis I and II |
|
Definition
|
|
Term
| T or F regarding meiosis: meiosis is carried out only in the gonads in order to produce gametes |
|
Definition
|
|
Term
| the daughter cells produced by mitosis are ______ with ______ sets of chromosomes, whereas the gametes provided by meiosis are _____ with sets of chromosomes |
|
Definition
|
|
Term
| spermatids migrate to the ______ to mature |
|
Definition
|
|
Term
| A condition called testiucular torsion results when the _________ |
|
Definition
| spermatic cord becomes twisted |
|
|
Term
| why is testicular torsion a surgical emergency? |
|
Definition
the spermatic cord contains the :
testicular artery
testicular vein
Therefore blood flow to the testicle would be disrupted which can lead to tissue death , testicle loss, or loss of function |
|
|
Term
| what structure is sectioned in a vasectomy? |
|
Definition
| the vas deferens is sealed off at one of both sides |
|
|
Term
| how does a vasectomy act as an birth control method? |
|
Definition
it prevents sperm from entering the ejaculatory duct
when vas deferens combines with seminal vesicle |
|
|
Term
| does a vasectomy alter the production of sperm |
|
Definition
no, sperm is still made in the Semiferous tubules .
a vasectomy prevents sperm from exiting the body,
(sperm is reabsorbed by body) |
|
|
Term
| beingn prostatic hypertrophy def |
|
Definition
| enlargement of the prostate |
|
|
Term
| why is urinary retention a symptom of beingn prostatic hypertrophy |
|
Definition
| the prostate is continous with the urinary tract & connects direclty with the penile urethra when the prostate is enlarged the urethra is being compressed. |
|
|
Term
| what is an ectopic pregnancy? |
|
Definition
| fertilized ovum implants in fallopian tube instead of endometrium of uterus (womb) |
|
|
Term
| why is an ectopic pregnancy dangerous? |
|
Definition
| the fallopian tube is not made for exapnding and can rupture due to the growing ovum. Other symptoms include blood loss ,damage to fallopian tube, and abdominal pain. |
|
|
Term
| one of the major complaints of pregnant women is the need to urinate often, why? |
|
Definition
| the uterus is situated btwn the bladder and the rectum. Therefore as the pregancy progresss that uterus will become larger and will decrease the expansion the bladder (transitional epithelium). |
|
|
Term
what happens when chromosomes dont fully seperate during meiosis 2,
also give an example |
|
Definition
| you can have a extra copy of a chromosome. For example trisomy 21 is the 3 copies of chromosome 21 (instead of 2). This is commonly known as Down's syndrome which delated cognitive ability and physical development. |
|
|
