What is apoptosis?

a. a metabolic step in blood clotting

b. a type of membrane receptor

c. a way to stimulate transcription

d. controlled cell suicide

e. a type of second messenger?

What are the requirements for photosynthesis to occur, and what is the role of ATP in this reaction?

The seed color of the garden pea was used to derive Mendel's two laws: segregation and independent assortment. Now, we know that the Y allele codes for the enzyme converting green to yellow chlorophyll.

Why does salt thrown on a frog's body will kill it?

The cells that hold neurons in place, remove dead neurons, and prevent poisonous substances in the blood from reaching the brain are called:

What breaks down dna into different strand lengths?

Which is a common age-related physical change that may affect digestion and food intake? a. loss of the majority of taste buds b. decreased cholecystokinin secretion c. decreased motility in the esophagus d. loss of smell?

If an organism''s diploid number is 12, what would be its haploid number?

Hola : D Necesito saber que relacion tiene la forma del tejido con el organo al cual pertenece

How does the live ensure that the body will have a constant supply of energy

Human albinism is an autosomal recessive trait. Suppose that you find a village in the Andes where 1/4 of the population is albino.