Meiosis Vocabulary

Gestation Period

time between fertilization and birth of an organism

Amniocentesis

test to know if there is something wrong with the baby

Autosomes

any of the numbered chromosomes

Calyx

sepals

Cancer

uncontrolled cell growth

Corolla

petals

Homologous

having the same relative position, value, or structure

Ovary

One pair of female glands in which the eggs form and the female hormones estrogen and progesterone are made

Petals

the parts of a flower that are often conspicuously colored

Klinefelter's Syndrome

extra copy of X chromosome; More feminine appearance

Chromatin

uncoiled DNA

Placenta previa

fertilized egg implants over the birth canal gets larger, needs more food. After birth starts to lose blood placenta comes off

Ectopic Pregnancy

a pregnancy in which the fetus develops outside the uterus, typically in a Fallopian tube.

Trisomy

having 3 chromosomes instead of a pair

Sex Chromosomes

a type of chromosome involved in sex determination.

Puberty

time of an organism's life where gametes are being made

Turner's Syndrome

a condition that affects only females, results when one of the X chromosomes (sex chromosomes) is missing or partially missing

Crossing-over

the exchange of genetic material between homologous chromosomes

Chiasmata

site of crossin-over

Freemartin

female calf of a male/female twin in cattle. She will be sterile.

Pollen

a fine powder produced by certain plants when they reproduce

Polar Body

eliminates unneeded DNA

Placenta

an organ that connects the developing fetus to the uterine wall, thereby allowing nutrient uptake, waste elimination, and gas exchange via the mother's blood supply

Uterus

organ where the body develops and grows. Placenta attaches to receive nourishment from Mom.

Fallopian Tube

a connection between ovary and uterus