Identify two environmental factors that affect the germination of seeds. Then list the adaptation(s) of
seeds to deal with each environmental factor. What will be an ideal response?
1. Low oxygen levels: rice plants carry out alchoholic fermentation, which enables the seeds/seedlings
to stay alive under anaerobic conditions
2. Low temperatures: apple seeds require low temperatures to “sense” winter so that they will then
germinate in the more hospitable environments of spring
3. Light: lettuce seeds require light in order to germinate, which ensures that the seedling will
photosynthesize instead of depleting the small amounts of food stored in the seed
4. Water: Certain desert plants require water to wash out the abscisic acid, which ensures that there
will be sufficient water available for seeding growth
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The first genetic trait described in humans was ____
a. albinism b. dwarfism c. Marfan syndrome d. multiple sclerosis e. brachydactyly
A gene that influences several traits is termed pleiotropic
Indicate whether the statement is true or false
Post-translational modifications of proteins may include the _____
A) removal of introns B) addition of a 5' cap C) addition of a poly-A tail D) addition of carbohydrates to form a glycoprotein
There are currently no known predatory bacteria that are adapted to invade or kill nearby cells
Indicate whether the statement is true or false.