Cell cycle, aging and death

Question 1

spiny stars formed during mitosis as microtubules grow radially away from each of the centriole pairs. Its spines penetrate the nuclear membrane and help separate the two sets of chromatids during mitosis

Answer 1

Aster

Question 2

Process which involves a specific proteolytic cascade that causes the cell to shrink and condense; to disassemble its cytoskeleton; and to alter its cell surface so that a neighboring phagocytic cell; such as a macrophage; can attach to the cell membrane and digest the cell

Answer 2

Apoptosis

Question 3

wheel-like heptamer formed from the oligomerized adapter protein called Apaf1

Answer 3

Apoptosome

Question 4

proteins that initiate apoptosis.

Answer 4

Caspases

Question 5

end result of progressive cell injury; which is one of the most crucial events in the evolution of disease in any tissue or organ.

Answer 5

Cell death

Question 6

X-shaped connection visible between paired homologous chromosomes during meiosis.

Answer 6

Chiasmata

Question 7

site of chromosomal crossing-over; a form of genetic recombination

Answer 7

Chiasmata

Question 8

small cylindrical microtubules 0.4μm long and 0.15μm in diameter consisting of 9 parallel tubular structures arranged in a form of a cylinder.

Answer 8

Centriole

Question 9

constricted region of a mitotic chromosome that holds sister chromatids together.

Answer 9

Centromere