Regents Review #1 (No Evo or Eco)

Farmers may someday clone their best milk producing cow into a whole herd. What potential disadvantage might be important to consider in having such a large group of clones on one farm?

• It may be difficult to tell the animals apart.

• Lack of variation may limit survival in the herd.

• The cows could be fertilized by only one type of bull.

• The cows could be mated only with each other.

DNA replication occurs in preparation for

• mitosis, only

• meiosis, only

• both mitosis and meiosis

• neither mitosis nor meiosis

An individual eats a hamburger. Which two systems must interact to transfer the nutrients in the hamburger to human muscle tissue?

• respiratory and excretory

• digestive and immune

• digestive and circulatory

• circulatory and respiratory

Cell A performs functions similar to the tissues and systems in complex, multicellular organisms. This process results in

• increased genetic variation

• the maintenance of homeostasis

• a reduction in competition

• increased autotrophic nutrition

The shape of a protein molecule directly determines its

• movements through the cytoplasm

• functions inside and outside of cells

• roles in building water molecules

• circulation throughout the body

Which molecule would require the use of energy in order to be brought into the cell?

• 1

• 2

• 3

• 4

A strand of DNA in a skin cell contains the bases:

A-T-G-C-C-A-T-C-G-G-T-A

After the cell is exposed to ultraviolet light, the strand contains the bases: A-T-G-G-C-C-A-T-C-G-G-T-A

Which statement describes the result of this exposure?

• A new base has been inserted.

• A base has been deleted.

• One base has been substituted for another.

• There have been no changes in the bases.

An ameba, a one-celled organism, can move, ingest, and transport materials within the cell, because it has

• organs

• organelles

• tissues

• systems

In humans, the placenta is essential to the embryo for

• nutrition, excretion, and reproduction

• respiration, nutrition, and excretion

• movement, reproduction, and nutrition

• coordination, movement, and growth

A student infected by a common cold virus ran a low-grade fever. After a few days, the student’s temperature returned to normal and the student was free of cold symptoms. The fever served as

• an antigen in the circulatory system

• an immune response to a pathogen

• a biological catalyst

• a weakened pathogen