Which of the following statements is true? A.) Tt and tt plants have the same phenotype. B.) A person with type O blood has two recessive genes. C.) Intelligence is controlled by a single gene. D.) In codominance, both genes are recessive.

List two problems that growth causes for cells

A j-curve represents a population that ... ?

Which is NOT part of the Cell Theory? A) All cells come from existing cells. B) Microscopic organisms are not made of cells. C) All living things are made of one or more cells. D) Cells are the basic unit of structure and function in living things

Which of the following is true of both the androgen receptor and a retinoid receptor? More than one answer can be correct. They are always located in the nucleus. The receptors' NLS is always exposed. They can bind steroid ligands.

Gametes are created during a divining process called___.

During binary fission, DNA copies move to opposite ends of the parent cell. This process is most similar to which phase of mitosis?

What is the name for the ability of living things to maintain a relatively constant internal environment? homeostasis stimulus-response cellular respiration metabolism?

The future of biology in 100 years

Can identical twins be different heights

What are the 3 primary elements that cycle between the mitochondria and chloroplasts