Examlex
Match the word in Column 1 to its definition in Column 2. Each answer can only be used once.
A)A protein that destroys or inactivates a specific antigen
B)An abnormally low sperm count
C)The liquid that separates from the blood when a clot is formed
D)The physical manifestation of a genetic trait such as shape, color, and blood type
E)A structure in the cell nucleus composed of DNA, along which the genes are located
F)A substance that stimulates the body to produce antibodies against it
G)The basic unit of heredity, consisting of a DNA segment located on a chromosome
H)The clumping together of red blood cells by the action of an antibody
I)The male sex chromosome
J)An enzyme found in high concentration in semen
K)The female sex chromosome
L)The fluid portion of unclotted blood
M)Any of several alternative forms of a gene located at the same point on a particular pair of chromosomes
N)The absence of sperm cells in semen
O)The particular combination of genes present in the cells of an individual
-X chromosome
Females
Refers to the sex of an organism, or part of an organism, that produces non-mobile ova (egg cells) and typically has XX chromosomes in mammals.
Amniocentesis
A medical procedure used in prenatal diagnosis where a small amount of amniotic fluid is sampled from the amniotic sac surrounding a developing fetus.
Ultrasound
A diagnostic imaging technique using high-frequency sound waves to create images of structures within the body.
Positron Emission Tomography Scanning
A diagnostic imaging technique that uses a radioactive substance to visualize and measure changes in metabolic processes and in other physiological activities.
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