Which is a part of the cell theory?

cells come from pre-existing cells

cells have a nucleus

organisms with one cell must be seen with a microscope

organisms must have more than one cell to live

Occurs due a genetic mutation in the hemoglobin gene resulting in poor oxygen supply. The patient requires frequent blood transfusions. NextReset

What species has the greatest impact on the biosphere?

What makes up the backbone of DNA

A gene for the MN blood group has codominant alleles M and N. If both children are of blood type M, which of the following is possible? Both children are heterozygous for this gene. Each parent must be type M. Each parent is either M or MN.

When two experiments are identical except for one variable, the experiment is called a (n) ?

The chart below shows the codons that make up the genetic code and the sequence of nucleotides that corresponds to them. A mistake during DNA replication leads to a mutation in the nucleotide sequence shown below.

The ability of an enzyme to change shape when it binds to its substrate is called

Describe how a scientist using the phenic system would classify an organism.

A student made a model of an ecosystem inside a sealed plastic bottle. She placed soil, rocks, water, plants, and animals inside the bottle. How is the model different from a natural ecosystem? A. The model lacks producers. B.

The scientific name of an organism is formed from what two parts of the organism's classification?