Bellringer 63 Bio

In order to form recombinant DNA, Scientists have found a way to cut a DNA segment using an enzyme named EcoR1.

This enzyme cuts DNA wherever the sequence

C-T-T-A-A-G occurs, between the A-G base.

Which would result if EcoR1 were used on the DNA in the diagram?

• A

• B

• C

• D

What is the function of EcoR1?

• It glues together the splices of DNA

• It reads the nitrogen bases and places the complimentary codes in order

• It cuts the DNA at specific sites for the action of making recombinant DNA

• It unzips the DNA

_______________ is an enzyme that functions to join or "glue" together DNA fragments, primarily during DNA replication and repair, as well as gluing a Bacterial plasmid with human strand of DNA.

• DNA polymerase

• DNA ligase

• DNA helicase

• EcoR1

The picture shows a segment of DNA from a cat.

Which of these is most likely the kitten of this cat?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

Which of these will complete the mRNA strand match to DNA?

• AUG

• CAG

• GUC

• UAC

The process of DNA replication is necessary before a cell-

• makes a protein

• codes for RNA molecules

• divides into 2 cells

• modifies lysosome enzymes

Tags

NGSS.HS-LS1-4

The parts of the DNA that provide the code for proteins are the-

• phosphate

• sugars

• hydrogen bonds

• nitrogenous bases

Tags

NGSS.HS-LS1-1

Tissue samples taken from the heart and stomach of a grasshopper would be expected to have the same:

• metabolic rates

• cell shape

• DNA

• cell size

Tags

NGSS.MS-LS1-1