Bio 224A Reproductive MYLAB Flashcards
Meiosis starts with a single diploid cell and produces
Four haploid cells
A cell preparing to undergo meiosis duplicates its chromosomes during
Interphase
During prophase 1 of meiosis
Homologous chromosomes stick together in pairs
The correct order to events during meiosis is
prophase 1, metaphase 1, anaphase 1, telophase 1, cytokinesis, meiosis II
During meiosis, segments of nonsister chromatids can trade places. This recombination of maternal and paternal genetic material is a key feature of meiosis. During what phase of meiosis does recombination occur?
Prophase I
Mitosis produces cells that are __; meiosis produce cells that are ___
Diploid; haploid
The fusion of sperm and egg is known as
fertilization
Where does sperm production occur within the testis
seminiferous tubules
The term ___ describes the movement of sperm and accessory glands secretions into the urethra
emission
Spermiogenesis begins with a __ and ends with a ___
Spermatid, sperm
Which of the following is the main hormone that regulates spermatogenesis
testosterone
The innermost epithelial layer of the uterus is the
endometrium
Where does fertilization usually oocur
Ampulla of the uterine tube
Rank from first to last step of follicular development
Primordial follicle
Primary follicle
Secondary follicle
Vesicular follicle
Ruptured follicle
Corpus luteum
Corpus albicans
A young female has begun taking herbal supplements that mimic the effects of progesterone. What affect will this have on her monthly cycle?
She will most likely not menstruate because the high levels of progesterone will maintain her endometrial lining, mimicking pregnancy.
Which of the following is true about oogenesis
It releases an immature gamete each month
In females, follicle-stimulaing hormone and luteinizing hormone target the
Ovaries
Which of the following is regulated by positive feedback mechanism in females
Ovulation
Which of the following is a barrier method of birth control
Diaphragm
What type of birth control may prevent pregnancy by manipulating the hormones and interfering with ovulation
Hormonal method
Why does the CDC recommend girls as young as 11 be vaccinated against the human papillomavirus ( HPV)
receiving the vaccination before they are sexually active will minimize their risk of contracting the virus in the future
Most common cause of cervial cancer is
HPV infection
Which of the following is NOT sexually transmitted infection ( STI) caused by bacteria
Genital herpes
A male visting a health clinic presents with a pink rash all over the body, fever, joint pain and compalins of some hair loss. determine the sexually transmitted infection this patients has contracted
Syphilis
Which of the following maybe prevented with a vaccine
Human papillomavirus ( HPV)
Complete this analogy ; testes are to gonads as sperm are to
Gametes
upon leaving the testes, sperm enters the __ for functional maturation
Epididymis
How would a patients semen be affected id he has a blockage in his seminal vesicle
he would have a reduction in the volume of his semen
Which os the following glands produces the majority of the fluid in semen
Seminal vesicles
the stem cells that give rise to new sperm are called
Spermatogonia
When menstruation has ceased for at least one year what has occurred
female climacterics or menopause
