More Biology Midterm Questions

Question 1

Which organisms have a single circular chromosone?
A. Eukaryotes
B. Prokaryotes

Answer 1

B prokaryotes

Question 2

True or false? Mitosis occurs in eukaryotic cells but not in prokaryotic cells?

Answer 2

TRUE

Question 3

Fill in the blank:
During cell division in a eukaryotic cell, mitosis is followed by ——,
The division of cytoplasm

Answer 3

Cytokinesis

Question 4

Name a type of cell division that occurs in prokaryotic cells, in which a parent cell divides into two identical daughter cells .
A. Multiple fission
B. Binary fission

Answer 4

B. Binary fission

Question 5

True or false?
Mitosis is the division of the nucleus into 2 genetically identical nuclei?

Answer 5

True

Question 6

Cell division in prokaryotes is called binary fission?

Answer 6

True

Question 7

In binary fission four daughter calls are produced? Tue or false?

Answer 7

False

Question 8

In the process of cell division the parent cell divides to form?
A. Twin cells
B . Daughter cells?

Answer 8

Daughter cells

Question 9

What are the levels of biological organization?

Answer 9

Organelles>cell>tissue>organ>organ system>organism

Question 10

Which activity can occur without the use of energy?
A. Contraction of muscle tissue
B movement of water across a membrane

Answer 10

B. Movement of water across a membrane

Question 11

Which substance can enter a cell by diffusion without having to be digested?

Answer 11

Water

Question 12

What controls the cell at key checkpoints?
A. Regulatory lipids
b. Regulatory proteins

Answer 12

B. Regulatory proteins

Question 13

In the cell cycle ____________, includes G1, S, and G2 phases

Answer 13

Interphase

Question 14

True or false : the cell cycle is more complicated in prokaryotic cells than in eukaryotic cells ?

Answer 14

False

Question 15

True or false? Cancer is a disease that occurs when the cell cycle is no longer regulated and cell division goes out of control

Answer 15

True

Question 16

True or false : the S phase in the cell cycle is short for synthesis phase the phase in which the DNA replicates ?

Answer 16

TRUE

Question 17

Which stage of the cell cycle involves the division of the nucleus?

Answer 17

Mitosis

Question 18

Name some phases of the cell cycle.

Answer 18

Synthesis phase, mitotic phase, growth phase

Question 19

What is an abnormal mass of cells that may be cancerous?

Answer 19

Tumor

Question 20

True or false?
DNA replication can only occur in eukaryotic cells?

Answer 20

False

Question 21

True or false? Prophase is the last stage of mitosis during which chromosomes uncoil to form chromatin , the spindle breaks down and new nuclear membranes form

Answer 21

False

Question 22

The spindle fibers ensure that sister chromatids will separate and go to different daughter cells when the cell divides? True or false?

Answer 22

TRUE

Question 23

True or false? The process of cell division includes both mitosis and cytokinesis?

Answer 23

TRUE

Question 24

The phase of the cell cycle when the cytoplasm splits apart and the cell separates into two identical daughter cells is?

Answer 24

Cytokinesis

Question 25

What is the opposite of prophase and pro metaphase?

Answer 25

Telophase

Question 26

The division of a nucleus occurs in a process called?

Answer 26

Mitosis

Question 27

True or false ? The first phase of mitosis is anaphase?

Answer 27

False

Question 28

True or false? Metaphase is the second phase of mitosis where chromosomes line up at the cells equator?

Answer 28

True

Question 29

What is the difference between a cell and tissue?

Answer 29

A cell is the basic building block of life Tissues are groups of similar cells that work together to perform a specific function

Question 30

What are genotypes made of the same alleles?

Answer 30

Homozygous

Question 31

What are different forms of genes for a single trait!?

Answer 31

Alleles

Question 32

What is a gene that is always expressed?

Answer 32

Dominant

Question 33

What is a gene that is expressed only in the homozygous state?

Answer 33

Recessive

Question 34

What are genotypes made of two different alleles?

Answer 34

Heterozygous