How is all the information contained in the DNA molecule able to fit in the nucleus?

it is broken into microscopic segments

the genes are packed into chromosomes

the double strand is twisted and coiled

no one knows

A man who carries an allele of an x-linked gene will pass it on to

the guard cells take in minerals by active uptake from the cells next to them. Explain why water then passes into the guard cells.

True or false: the breakup of pangea resulted in warm wet global climates?

5. Which of the following must an animal do to survive? - Reproduce - Breath air - Maintain homeostasis - dig a burrow

Where does dna replication occur

Which class of biologically important molecules are steroids related to? nucleic acids proteins lipids Carbohydrates

The golgi apparatus (dictyosome) plays a major role in what cellular pathway?

What is the flotation method used to determine? Mass Density Volume Color

Fossil records suggest major changes in early vascular plants that favored the evolution of land plants. Which was one of these major changes? Select one of the options below as your answer: A. Development of fruit B. Development of seed C.

Many people in the developing world who depend on rice in their diet suffer from diseases related to deficiencies of