A few biology questions? Help thanks!?

Question

1.) All organism have which of the following attributes?

a.) Composed of cells

b.) They can reproduce

c.) Can reproduce, perform metabolism, and are composed of cells

d.) can reproduce and they are composed of cells

e.) can perform metabolism

2.) what is gel electrophoresis used for?

a.) identify the first self-replicating molecule that formed during chem evolution

b.) to denature proteins for further analysis

c.) to separate the two helices that make up the DNA double helix

d.) to separate macromolecules by size or charge

3.) Which one of the following is not a way that RNA is seen as intermediate between DNA and proteins?

a.) has 5 and 3 termini like DNA, but it also has amino and carboxy termini like protein

b.) can catalyze reactions, but not as well as proteins

c.) contains genetic information like DNA, but is not as stable

d.) composed of nucleotides, but forms tertiary and quaternary structures like a protein

Thanks to all for your help!

Answer 1

1.) All organism have which of the following attributes?

c.) Can reproduce, perform metabolism, and are composed of cells

2.) what is gel electrophoresis used for?

d.) to separate macromolecules by size or charge

3.) Which one of the following is not a way that RNA is seen as intermediate between DNA and proteins?

d.) composed of nucleotides, but forms tertiary and quaternary structures like a protein

Answer 2

1.) C - Basic definition of a organism

2.) D - Gel electrophoesis is used to seprate DNA, proteins, and other macromolecules

3.) D - RNA can be catalytic, but can only form secondary structures, not tertiary and quarternary.

good luck.