Cell Division & Genetics

The region that contains the genetic information in a bacterial cell is called the:

• nucleolus

• nucleosome

• NUCLEOID

• nucleus

• nucleoprotein

Eukaryotic chromosomes:

• Only two choices are correct

• CONSIST OF BOTH DNA AND PROTEIN

• MAY OCCUR AS CHROMATIN

• CONTAIN HISTONES RESPONSIBLE FOR PACKAGING DNA TO FIT INTO A SMALL SPACE

• All of the choices are correct

What might prevent a cell from passing the G1 checkpoint?

• THE CELL MAY HAVE DAMAGED DNA AND NEED TO UNDERGO APOPTOSIS

• The DNA has not completed replication

• The daughter cells are haploid

All of the following are true about the chromosomes of a multicellular organism EXCEPT:

• All cells contain chromosomes that carry the same genetic information

• Each chromosome is replicated into two chromatids during the S phase of interphase

• EACH CHROMOSOME SEPARATES INTO TWO DAUGHTER CHROMOSOMES BY BINARY FISSION

• They are made up of DNA and protein

The function of mitosis is:

• asexual reproduction in some species

• growth of the organism and tissue repair

• ALL OF THE CHOICES ARE CORRECT

• • to ensure that each new cell receives a complete set of genetic information

The diploid (2n) number of chromosomes for a human being is:

• 44

• 46

• 23

• 24

• 48

Which represents the correct sequence of stages in the cell cycle?

• G1, G2, M, S

• G1, G2, S, M

• G1, S, G2, M

• G1, M, G2, S

Which of the following are the critical checkpoints during interphase? (Select all that apply)

• G2 STAGE

• M stage

• G1 STAGE

• S stage

Which sequence of the mitotic stages is correct?

• anaphase, prometaphase, metaphase, prophase, telophase

• prophase, anaphase, prometaphase, metaphase, telophase

• prophase, telophase, anaphase, prometaphase, metaphase

• PROPHASE, PROMETAPHASE, METAPHASE, ANAPHASE, TELOPHASE

• telophase, anaphase, prophase, prometaphase, metaphase

What type of cell division occurs in bacterial cells?

• cytokinesis

• cells arrested in the G0 phase

• BINARY FISSION

• mitosis