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37 Cards in this Set
- Front
- Back
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where does fertilization of the sperm and egg usually occur? |
begins in the fallopian tubes away from the uterus |
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what is the function of the corpus luteum? |
is secretion of the hormone progesterone, which is required for maintenance of normal pregnancy in mammals. develops from residual follicular granulosal & thecal cells after ovulation |
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where do sperm cells mature |
the epididymis |
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A spike in Luteinizing Hormone (LH) causes ovulation |
.... thats a fact |
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Which hormone in males influences the development of secondary sex characteristics? |
testosterone |
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Which hormone stimulates the development of the egg in females? |
estrogen |
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Which hormone stimulates sperm production? |
FSH |
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where does oogenesis (maturing of the egg) occur? |
The outermost layer of the ovaries |
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which glands contribute a produce to semen? |
The prostate gland & bulbourethral glands |
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in which organ does the fertilized egg implant and develop? |
the uterus |
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Replication |
The process of copying DNA prior to cell division |
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Transcription |
The production of a single strand of RNA from a segment (representing a gene) of one of the two strands of DNA. The base sequence of the RNA is complementary to that of the single strand of DNA. |
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Translation |
The process by which the genetic code of mRNA is used to string together the appropriate amino acids to produce a specific protein. |
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Crossing over |
exchange of DNA segments between homologous chromosomes during prophase 1 of meiosis. |
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Transcription, replication, and translation occur where? |
occur in the cytoplasm |
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given a segment of DNA what is the corresponding seg of mRNA |
???? |
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What is a codon? |
a sequence of three nucleotides that together from a unit of genetic code in a DNA or RNA molecule. |
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What is the difference between mitosis and meiosis? |
meiosis has two rounds of genetic separation and cellular division, while mitosis only has one of each |
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What enzyme is used to replicate DNA and what enzyme is used to synthesize a strand mRNA? |
??????? |
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DNA from two or more sources is called____ |
Recombinant DNA |
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What is it that restriction enzymes do? |
recognizes a specific, short nucleotide sequence and cuts the DNA only at that specific site. (it is a protein) |
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What is the automated laboratory procedure that can create millions of copies a single gene |
recombinant DNA technology |
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which enzyme attaches the "sticky ends" of DNA segments together? |
restriction enzyme |
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What is a protein and where does it come from? |
small circular, self- replicating DNA molecules found in bacteria -can be useful b/c they can be made to incorporate a foreign piece of DNA |
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What process uses an electrical field to separate DNA fragments based upon their length |
gel electrophorosis |
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What are the different uses of DNA fingerprinting? |
to identify a specific individual of a population -to identify criminals -identify deceased -to trace ancestral relationships -determine paternity |
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Using genetically engineered animals to produce pharmaceuticals in milk is called____? |
gene farming |
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what is aging? |
An internal cellular program counts repair, a whole body process |
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symptoms associated with aging |
less function of musculoskeletal system & skin, cardio vascular & respiratory systems, immune system, nervous and sensory systems. |
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condition associated with female aging |
menopause |
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organ systems affected by aging |
respiratory, immune, and endocrine |
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HPV |
causes cervical cancer & genital warts |
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The HIV virus attacks which specific immune cells? |
infects the T-cells |
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Precautions to prevent STDs include? |
1) select your partner wisely 2) communicate with partner 3) use suitable barriers |
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Which STDs are caused by viruses? |
HIV (aids), Hep B, Genital herpes, Human pap (HPV) |
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Which STDs are caused by bacteria? |
Gonorrhea, Syphillis, and Chlamydia |
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Which STDs can cause PID (pelvic inflammatory disease) |
Chlamydia & gonorrhea |
