Download Cell Reproduction vocabulary

Cell Reproduction vocabulary
• 1. Gene- segment of DNA that
transmits information from
parent to offspring.
• What type of
macromolecule
is DNA?
• 2. Chromosome- structures
in the nucleus made of
tightly coiled DNA (genes)
What cell part are
chromosomes found in
eukaryoticcells?
• 3. Chromatid- one of the pair that
makes up a chromosome
• 4. Centromere- point where
chromatids are attached.
• Draw and label the pic
5. Homologous chromosomes- pair of
chromosomes similar in size, shape, and
information. One from mom one from dad.
Examine the picture below called a
karyotype. It shows the chromosomes of a
human. How many pairs of chromosomes do
humans have?
• 6. Diploid- a cell that contains 2
homologues or copies of each
chromosome. Your body cells are
diploid and have 23 pairs or 46
chromosomes.
• Draw this picture, including labels
• 7. Haploid- a cell that
contains only 1 copy of each
chromosome. Your
egg/sperm cells are haploid
Identify whether each cell is
haploid or diploid.
• 8. Gamete- a sex cell (egg or
sperm cell). When 2 haploid
gametes meet they form a
diploid cell.
• 9. Autosome- chromosomes that
are the same in males and
females 22 of the 23 pairs in
humans. They are numbered by
size (body chromosomes)
• Some conditions, such as Down Syndrome, are
caused by having an abnormal number of
chromosomes. Circle the chromosomes that
look abnormal.
• 10. Sex chromosome- chromosomes
that are different in males and
females.
• XX= females, XY=males
• Do the chromosomes represent a male
or a female?
• Binary Fission- Cell division in prokaryotic cells
(bacteria)