A mutation may occur in a gene as a result of the ...

1) synthesis of a spindle apparatus

2) loss of a chromosome part

3) loss of a nucleolus

4) replication of centromeres

The apples at the local supermarket have been genetically engineered to resist warmer temperatures than they did before. What do these apples contain? transgenic DNA transgenic organisms recombinant DNA recombinant organisms

Which is a type of irradiation used to prevent food-borne illnesses? (a) gamma rays (b) microwaves (c) radio waves (d) beta waves

The cell below has a membrane that is permeable to water but impermeable to salt. The concentration salt in the cell is 5%. What would happen if we put this cell into a 1% salt solution?

What is solid waste produced by a sewage-treatment plant is called runoff slime sludge discharge

the cell cycle plays a key role in other cellular process. What is this process, and might this process be triggered

Explain the importance of regulatory mechanisms in living things. Distinguish between positive and negative feedback.

Explain some of the negative effect of climate change an how that will impact our civilization

One factor that drives atmospheric circulation is the movement of air from warm equatorial areas to cooler areas.

In a species of corn, the diploid number of chromosomes is 20. what is the number of chromosomes found in each of the normal egg cells produces by this species?

How do deciduous trees in other parts of the world most likely respond to seasonal changes?