Biology

Chemical substance that is an essential part of the structure of cells. Its main functions are to act in metabolism and as antibodies.

• DNA Bases

• Aminoacids

• Protein

• Nucleotides

Where is DNA found inside the cell?

(a)  

¿What is an eukaryotic cell?

• Any cell or organism that share a clearly defined nucleus

• Has other membrane bound organelles

• Any cell or organism that possesses a clearly defined nucleus

• Has membranes but undefined.

How do new cells originate?

• This process is called cell division. One cell doubles by dividing into two

• When cells become damaged or die the body makes new cells to replace them

• Through meiosis

• This process is called cell combination of it is to create new life in a cell

DNA is structured in the form of a triple helix.

• True

• False

(a)   are large, complex molecules that perform many critical functions in the body it found also in the DNA.

What parts of the body are usually used to extract DNA?

• DNA samples from plants and many other animals are often extracted from blood or skin cells

• DNA samples from humans and many other animals are often extracted from hair and implants

• DNA samples from humans and many other animals are often extracted from membranes and fluids.

• DNA samples from humans and many other animals are often extracted from blood or skin cells

What are the functions of DNA?

• Replication, DNA exists in a triple-helical arrangement, each base along one strand binds to a separate base on the other strand.

• Contains the instructions needed for an organism to develop, survive and reproduce

• Replication in once.

  Gene structure.

  Mutation.

  Duplication.

• Carrying and dismissing hereditary materials or genetic instructions from parents to offspring

¿Who discovered DNA?

• Gregor Johann Mendel

• Johann Friedrich Miescher

• Charles Robert Darwin

• Robert Whittaker

¿What is RNA?