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STUDY GUIDE – GENETICS
- The following diagram represents ___MITOSIS__________
- The following diagram represents _MEIOSIS____________
- The Cell Cycle includes __Interphase_______, ___Mitosis________, and ___Cytokinesis_______
- Label each of the following as either Mitosis OR Meiosis
a. Two Divisions __Mitosis______________
b. Four Divisions ___________Meiosis_____
c. Occurs in all organisms __Mitosis______________
d. Occurs in fungi, plants, and animals ___________Meiosis_____
e. Produced cells are genetically different ___________Meiosis_____
f. Produced cells are genetically the same __Mitosis______________
g. Produces 4 cells ___________Meiosis_____
h. Produces 2 cells __Mitosis______________
i. Used for sexual reproduction ___________Meiosis_____
j. Used for growth, repair, and asexual reproduction __Mitosis______________
- During Interphase, the cell ___Functions and operates as a cell_____________________
- During Mitosis, the cell ____Replicates the nucleus and genetic material____________
- During Cytokinesis, the cell ___Splits into two cells_____________________________
- Identify each of the following phases of mitosis
- The uncontrolled growth of cells is called ___Cancer________________________
- The two types of tumor are __Benign__________________ and ____Malignant___________
- List the five ways that cancer cells differ from normal cells
a. ___Shorter Interphase___________________
b. ___Uncontrolled Mitosis___________________
c. ___Grow faster___________________
d. ___Break away and travel throughout body___________________
e. ___Different physical structure___________________
- Explain why normal cells cannot survive if they grow too large
The surface area to volume ratio is too small and they can’t get material into and out of the cell
fast enough
____Interphase______________ ________Metaphase__________ ______Prophase______________
______Anaphase_____________ ________Telophase________
- How do the DNA bases bond together?
A-T
G-C
- Complete the following Punnett Squares.
a. Sweet sweet potatoes are dominant and sour sweet potatoes are recessive. Cross a
homozygous dominant sweet potato with a heterozygous sweet potato. Show the cross
and Punnett square and give phenotype and genotype ratios of all potato types.
b. Turkeys roosting in trees is dominant to turkeys roosting on the ground. A homozygous
recessive turkey and a heterozygous turkey have a very large brood. Out of 100 turkeys
how many would you expect to find roosting in the trees?
c. You own a package of heterozygous orange pumpkin seeds. You really want white
(recessive) pumpkins. Use genetics to explain how you can produce a crop of white
pumpkins.
S
s
S
S
SS Ss
SS Ss
5 0% Ss
50% SS
100% Sweet
t
t
T
t
Tt Tt
tt tt
5 0% roost in trees
50 turkeys roost in trees
50% SS
100% Sweet
All of the heterozygous pumpkins will be orange.
However if you cross them you will get 1 in 4 white. So
cross them. Then cross two white pumpkins and all of
your pumpkins will be white
