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25 Cards in this Set

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What is the process called when a cell reproduces itself and its DNA?
mitosis
Which kind of cells have the normal amount of chromosomes?
diploid
Which kind of cells have half the normal amount of chromosomes?
haploid
What is it called when the DNA in a cell is scrambled around in the nucleus?
chromatin
What is the process of making sperm and eggs?
meiosis
What is it called when sperm are made?
spermatogenesis
What is it called when eggs are made?
oogenesis
What connects the old DNA and the new DNA in the chromosome?
centromere
What are the objects in the cell that separate the chromosomes during anaphase?
spindle fibers
What is the place called where the cell membrane and and cytoplasm pinch together?
cleavage furrow
What is a chain of amino acids called?
Protein
What is the basic unit of DNA?
nucleotide
What is one half of a gene pair called?
an allele
What three things make up a nucleotide?
sugar, phosphate, base
How many chromosomes does a normal human being have?
46
What kind of replication has half-old, half-new DNA?
Semi-conservative replication
What is it called when DNA makes a copy of itself?
Replication
This enzyme "unzips" the DNA.
Helicase
What is the place called where the DNA opens up?
The replication fork.
Which enzyme attaches to the nucleotides?
Polymerase.
What is a mistake called in DNA replication?
A mutation
Which enzyme glues all the pieces together?
Ligase
What does DNA stand for?
Deoxyribonucleic acid
What does G ALWAYS pair with?
C
What does T ALWAYS pair with?
A