Nova – Week 14: Epigenetics & Frozen Frogs
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- 1.Identical twins _____.
- A.
Come from the same egg
- B.
Share the same genes
- C.
Are – in effect – clones of one another
- D.
All of the above
- 2.Dr. Jirtle has two “identical” mice – one _____ and one _____.
- A.
Fat ... thin
- B.
White ... brown
- C.
With blue eyes ... with pink eyes
- D.
(The two mice are identical in all respects.)
- 3.Apparently, a normal mouse weighs approximately _____ grams.
- A.
15
- B.
30
- C.
45
- D.
60
- 4.If a gene can be compared to a computer, then an epigenome can be compared to _____.
- A.
The manufacturer of the computer
- B.
The computer programmer
- C.
Computer software
- D.
A computer virus
- 5.Studies suggest that _____.
- A.
As twins age their epigenetic differences accumulate
- B.
Twins with different lifestyles have different epigenetic expressions
- C.
Epigenetics can be influenced by what we eat and drink – or by smoking
- D.
All of the above
- 6.Unlike other amphibians, _______ can survive being frozen solid.
- A.
Poison dart frog
- B.
Green tree frogs
- C.
North American wood frogs
- D.
Bullfrogs
- 7.When the frog is frozen there is no _____.
- A.
Breathing
- B.
Kidney function
- C.
Heartbeat
- D.
(There are no bodily functions at all.)
- 8.As it begins to freeze, the frog floods its circulatory system with a special type of “antifreeze” _____.
- A.
Sugar
- B.
Protein
- C.
Enzyme
- D.
Salt
- 9.The frozen frog can take as long as _____ to spontaneously resume bodily function.
- A.
30 seconds
- B.
20 minutes
- C.
10 hours
- D.
5 days
- 10.Apparently, the first thing on a freshly thawed frog’s mind is _____.
- A.
Food
- B.
Finding water
- C.
Evading predators
- D.
L’amour
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