Download Life Science review

Name ______________________________________________ Hour ________
MATCHING Place the matching letter in the space provided.
_____ 1. DNA Replication
a. DNA reproduction or duplication
_____ 2. Cell
b. Chemical in the nucleus of cells that carries genetic
information; it is a double helix
_____ 3. Meiosis
c. Cell division of the body’s cells
_____ 4. DNA
d. The smallest unit of life able to function on its own
_____ 5. Heredity
e. Parts in the nucleus of a cell that contain genes. Seen in
mitosis and are “X shaped.”
_____ 6. Chromosome
f. process where genetic factors are passed from 1 generation to the
next.
_____ 7 .Mitosis
g. Parts on chromosome that carry factors from parent to
offspring (hint: we have around 25,000 of them)
_____ 8. Gene
h. A trait that is ALWAYS expressed.
_____ 9. Dominant
i. Cell division of the sex cells (gametes: egg and sperm)
_____ 10. Recessive
j. A trait that is not always expressed (shows up only when
there is no dominant trait present).
MITOSIS
List the stages of mitosis & fill in the missing words.
(On the assessment you will need to know what happens in each phase).
1. _______________
____________ is replicating; the cell is growing.
2. ______________
Mitosis begins and ___________________ appear.
3. _______________
Chromosomes line up & attach to _____________
_______________.
4. _______________
Chromosomes split apart & move to
__________________ ends of the cell.
5. _______________
The ____________ reforms, the cell starts to pinch in 2.
6. _______________
Cell Division – 2 new _____________ are formed.
IN THE TABLE BELOW, ANSWER THE QUESTION FOR MITOSIS/MEIOSIS
MITOSIS
Type of cell
(body or sex cell)
Number of divisions
Number of daughter cells
produced
Number of chromosomes
in daughter cells
Label the following DNA structure
MEIOSIS
More Matching Vocabulary:
_____ 1. Homozygous
a. The physical trait of an individual
_____ 2. Heterozygous
b. Having 2 identical alleles for a trait (tt or TT).
_____ 3. Genetic engineering
c. Having 2 different alleles for a trait (Tt).
_____ 4. Genotype
d. The genetic makeup of an individual
_____ 5. Phenotype
e. The manipulation of DNA by splicing
and recombining it in order to produce new
characteristics in a species.
Complete the Punnett Square and answer the questions that follow:
D = dimples present
d – no dimples
Mommy
Daddy
1.
In the cross above, how many offspring will have dimples? What is the
percentage?
2.
In the cross above, how many offspring will not have dimples? What is the
percentage?
3.
Is it possible that the parents above would NOT produce a child with
dimples? Explain.
4.
Which offspring are heterozygous and homozygous (list the letters).