After setting the correct photoperiod, the managers of a greenhouse still do not

Question

After setting the correct photoperiod, the managers of a greenhouse still do not have blooming roses. Which of the following events would most likely have contributed to the problem?

Select one:

a. The heating system allowed for fluctuations in temperature between 20°C and 25°C.

b. The furnace mechanic accidentally turned off the lights for an hour two days in a row.

c. The cleaning crew turned the lights on for an hour three nights in a row.

d. The staff forgot to fertilize the plants on their regular schedule.

e. The irrigation system failed over a weekend when no staff member was around.

If the plant gene APETALA1 is nonfunctional, which process will not occur?

Select one:

a. Flowering

b. Branching

c. Leaf formation

d. Growth in height

e. Distinction between petals and sepals

Which statement about aerobic and anaerobic ATP production is true?

Select one:

a. Both take place in the cytoplasm.

b. Both take place in the mitochondria.

c. Aerobic ATP production occurs in the cytoplasm, while anaerobic ATP production occurs in the mitochondria.

d. Aerobic ATP production occurs in the mitochondria, while anaerobic ATP production occurs in the cytoplasm.

e. Aerobic ATP production occurs in the mitochondria, while anaerobic ATP production occurs in the interstitial space.

An oocyte is nourished by _______ cells and after the first meiotic division is _______.

Select one:

a. granulosa; haploid

b. granulosa; diploid

c. granulosa and theca; haploid

d. theca; diploid

e. granulosa and theca; diploid

Explanation / Answer

After setting the correct photoperiod, the managers of a greenhouse still do not have blooming rose the probable reason is:

a. The heating system allowed for fluctuations in temperature between 20°C and 25°C. As rose is a day neutral plant, i.e. its flowering is not dependent on photoperiod. As the ideal temperature is; minimum of 15°C and maximum of 28°C.

If the plant gene APETALA1 is nonfunctional, which process will not occur?

: e. Distinction between petals and sepals is correct

Which statement about aerobic and anaerobic ATP production is true?

d. Aerobic ATP production occurs in the mitochondria, while anaerobic ATP production occurs in the cytoplasm, is true. As Aerobic ATP production requires the electron transport chain and occurs in the mitochondria, while the anaerobic i.e. the glycolytic pathway of ATP synthesis occurs in the cytoplasm.

An oocyte is nourished by granulose cells and theca cells as theca cells function by cross talking with granulosa cells and oocytes delivering essential nutrients to the highly active oocytes (JM Young ,)2010. Further after the first meiotic division which is reductional division homolygous chromsomes are separated, and the cells become haploid.

Hence it is option C: c. granulosa and theca; haploid that is correct.

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