Question

Q11. Which of the following shows the minimum rise in temperature? (A) 0°C to 10°C (B) -4°C to 8°C (C) -15°C to -8°C (D) -7°C to 0°C
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Answer 1

Answer:

(A) Rise in temperature = (10−0)

o

C

= 10

o

C

(B) Rise in temperature = (8−(−4))

o

C

= (8+4)

o

C = 12

o

C

(C) Rise in temperature = (−8−(−15))

o

C

= (−8+15)

o

C = 7

o

C

(D) Rise in temperature = (0−(−7))

o

C

= (0+7)

o

C = 7

o

C

Thus, option (B) has maximum rise in temperature.

Answer 2

Today, mitosis is understood to involve five phases, based on the physical state of the chromosomes and spindle. These phases are prophase, prometaphase, metaphase, anaphase, and telophase. ... All phases of mitosis, as well as the flanking periods of interphase and cytokinesis before and after, are shown in Figure 8.