CFU: Chapter 10: How Cells Divide

Bacterial cell division

Bacteria divide by binary fission

•No sexual​ (a)   cycle.

•​ (b)   is clonal.

Single, circular bacterial chromosome is replicated

Replication begins at the origin of​ (c)   and proceeds in ​ (d)   directions to site of termination

New chromosomes are partitioned to ​ (e)   ends of the cell

Septum forms to divide the cell into two cells.

• life
• Reproduction
• replication
• two
• three
• one
• opposite

True or False:

According to the notes, during binary fission the last step it mentions that the cell pinches in two, and three daughter cells are formed, each containing a bacterial DNA molecule.

• A. True

• B. False

True or False:

Production of septum separates cell’s other components

Begins with formation of ring of FtsZ proteins.

Accumulation of other proteins follow.

Structure contracts radially to pinch cell in two.

FtsZ protein found in most eukaryotes.

• A. True

• B. False

True or False:

FtsZ protein has a structure similar to bacterial tubulin

Role of FtsZ in bacterial division is very similiar from the role of tubulin in mitosis in prokaryotes.

Different protein assemblies are utilized in cell division by different organisms.

• A. True

• B. False

True or False:

Eukaryotes typically have 10-50 chromosomes in their body (somatic) cells

Humans have 46 chromosomes in 23 nearly identical pairs

•Additional/missing chromosomes usually fatal.

• A. True

• B. False

Match the following:

Protein assemblies across organisms

• Some Protists

• 
• Yeasts

• 
• Animals

• 
• Other Protists

• 
• Prokaryotes

• 

Match the following:

Protein assemblies across organisms

• Animals

• 
• Some Protists

• 
• Prokaryotes

• 
• Other Protists

• 
• Yeasts

• 

True or False:

According to the image, what is the gender of this person

's Karotype.

• A. male

• B. female

• c. None of the above

Karyotype

Particular array of ​ (a)   in an individual organism

•Arranged according to ​ (b)   , staining properties, location of centromere, etc.

Humans are ​ (c)   (2n)

•Two complete sets of chromosomes.

•​ (d)   total chromosomes.

Haploid (n)

•One set of chromosomes.

•​ (e)   in humans.

Pair of chromosomes are homologous

•Each one is a homologue.

• chromosomes
• size
• diploid
• 46
• 23
• 22
• 44
• haploid

According to the Chapter 10 notes, chromosome are composed of (a)   .