Create an account
Secretes acid neutralizing mucous into the penile urethra prior to ejaculation.
Which of the following is false regarding the female sexual response?
Testosterone is the hormone that is primarily responsible for female libido.
____ stimulates the anterior pituitary to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
Choose the false statement about oogenesis.
In humans, the secondary oocyte must complete meiosis II before it can be fertilized.
________ acts upon the ________ to encourage the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
Gonadotropin-releasing hormone (GnRH); anterior pituitary.
Which of the following is true about meiosis?
Meiosis produces cells that have a haploid chromosome number.
Heterozygote has a phenotype that is intermediate between the homozygous dominant and recessive phenotypes.
All of the following statements about the foramen ovale are true except:
It allows blood to pass directly from the right atrium into the left ventricle.
Which statement about maternal hormones during pregnancy is accurate?
Estrogen levels increase throughout gestation.
What is the function of the hormone hCG?
It signals the corpus luteum to continue producing estrogen and progesterone to maintain the pregnancy.
Which of the following is NOT a common metabolic/physiological change that occurs in pregnant women?
Lower blood pressure.
Which hormone produced by the placenta causes the mother's pubic symphysis to loosen and widen?
Sperm are known to bear ____________ that respond to chemical stimuli that help them locate the ova.
Question 26 answers
Which of the following is NOT a function of trophoblast cells?
The inner layers of trophoblasts lose their plasmic membranes and invade the endometrium.
___ occurs when a woman has a deformed or male-like pelvis, resulting in prolonged and difficult labor; this condition can lead to fetal brain damage, ultimately causing cerebral palsy or epilepsy.
The process of implantation generally begins ___ and is usually completed by ___.
6-7 days after ovulation/12th day after ovulation.
Human chorionic gonadotropin (hCG) levels spike within the first two months of pregnancy and then sharply decline by four months.
_____ and ____ are both hormones and powerful uterine muscle stimulants which cause contractions to become more frequent and more vigorous.
Oxytocin and prostaglandins.
Which of the following occurs eight weeks into pregnancy?
The head of the fetus is nearly as large as the body.
The ectoderm is the primary germ layer from which the digestive, respiratory, urogenital systems, and associated glands form.
Leads to enhancement of sperm motility and increasing membrane fragility to enable enzyme release from acrosomes.
By the end of the third month of pregnancy, the placenta is usually fully functional as a nutritive, respiratory, excretory, and endocrine organ.
In humans, the extraembryonic membrane that comprises the structural base for the umbilical cord is the ___.
Which of the following occurs 17-20 weeks into pregnancy during the fetal period?
For successful fertilization to occur, coitus mus occur no more than ___ and no later than ___.
2 days before ovulation/24 hours after.
Use the following information to solve the problem using a Punnett square.
Assume that the dominant "B" allele encodes brown eyes and the recessive "b" allele encodes blue eyes.
An individual with the genotype bb has children with an individual of the genotype Bb. What is the percent chance that they would have children with blue eyes?
An organism with one pair of homologous chromosomes could produce ___ different gametes on the basis of independent assortment alone.
The larger the number of offspring, the greater the likelihood that the ratios predicted by a Punnett square will conform to the predicted values.
Many genetic disorders, such as albinism, cystic fibrosis, and Tay-Sachs disease, are inherited as simple recessive traits.
When the two alleles controlling a trait are different, the individual is ___ for the trait.
Heterozygous individuals that can pass on recessive, abnormal conditions are are referred to as:
If the allele for brown hair was represented as B, this would mean that ___.
Brown hair was a dominant trait.
Traits that display a continuous phenotypic variation are usually determined by this form of inheritance.
Heterozygous parents who have had one child with a recessive disease will have a ___ chance of having their second child being born with the same recessive disease.
The form of inheritance in which the heterozygous state is expressed as an intermediate is:
What is the probability of having a child with a recessive trait if both parents are heterozygous for the trait.
Males tend to inherit more sex-linked conditions because:
There is no corresponding allele on their Y chromosomes.
What type of allele will be expressed if both dominant and recessive alleles are present for a given trait?
The number of different gametes that can be produced in a male, based on independent assortment alone, equals _____.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together