Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/40

Click to flip

40 Cards in this Set

  • Front
  • Back
estrogen
a hormone that triggers the development of some adult female characteristics.
oviduct
ovaries located near them-2 oviducts. passagways for eggs. place wherre fertilization usaully occurs. EACH MONTH ONE OF THE OVARIES RELEASES A MATURE EGG WHICH ENTERS THE NEAREST OVIDUCT--oviduct leads to the uterus [womb]
uterus
hollow muscular organ about the size of a PEAR
vagina
muscular passageway leading to the outside of the body-[birth canal]
menstrual cycle
the monthly cycle of changes taht occurs in the female reproductive system. DURING IT, AN EGG DEVELOPS IN AN OVARY. AT THE SAME TIME THE UTERUS PREPARES FOR THE ARRIVAL OF A FERTILIZED EGG.
ovulation
about halfway through a typical cycle, the mature egg is released from the ovary into an oviduct.
menstruation
if the egg is not ferilized, it begins to break down. the lining of the uterus also breaks down. the extra blood and tissue of the thickened lining pass out of the body through the vagina.
embryo
[begininning stages of zygote] next 8 weeks or so, the developing human is called an embryo.
amniotic sac
fluid filled sac. [surounds the baby] the fluid cushions the baby
placenta
the link between the developing embryo and the mother.
umbilical cord
a ropelike structure that forms between the embryo and the placenta. contains blood vessels...
fetus
for the 9th week of development until birth, the embryo is called a fetus.
adolescence
the state of development when chidren become adults physically and mentally.
puberty
the period of sexual development in which the body becomes able to reproduce.
mitosis
the stage durning which the cell's nucleus divides into two new nuclei [produces body cells]
chromosome
doubled rod of condensed chromatin
DNA
is the geneticmaterial that carries information about an organism that is passed from parent to offspring. the info dierects all of the cell's functions.
traits
physical characteristics
heredity
the passing of traits from parents to offspring
purebred
a purebred plant is one that always produces offspring with teh same form of a trait as the parent
genes
the factors that control traits
alleles
different forms of a gene
dominant allele
one whose trait always shows up in the organism when the allele is present.
recessive allele
is covered up whenever the dominant allel is present
hybrid
things that have 2 different alleles for a trait
probability
the liklihood that a particular event will occur
punnett square
a chart that shows all the possible combinations of alleles that can result from a gentetic cross.
phenotype
its physical appearance or its visible traits.
genotype
genetic makeup or allele combinations.
homozygous
an organism that has 2 identical alleles for a trait
heterozygous
an organism that has 2 different alleles for a trait
cystic fibrosis
genetic disorder in which the body produces abnormally thick mucus in the lungs and intestines
sickle-cell disease
genetic disorder that affects blood and the production of hemoglobin
hemophilia
genetic disorder where a person's blood clots very slowly or not at all. people with this can bleed to death from a minor cut or scrape.
huntingtons disease
genetic disorder that causes the gradual breakdown of cells in the brain, leading to death
down syndrome
genetic disorder where people have a distinctivce physical appearance and mental retardation
clone
an organism that is genetically identical to the organism from which it was produced
karotype
a picture of all the chromosomes in a cell [doctors tool]
amniocentesis
a procedure to determine whether the baby will have some genetic disorders. doctors use a very long needle to remove a small amount of the fluid that surrounds the developing baby.
fertilization takes place after what?
OVULATIONN