Genetics And Plant Breeding - Study Mode

[#71] Photophosphorylation takes place in
Correct Answer

(B) Grana

Explanation

Solution: Photophosphorylation takes place in Grana. In the process of photosynthesis, the phosphorylation of ADP to form ATP using the energy of sunlight is called photophosphorylation. The light reaction takes place in the grana of the chloroplast where light energy gets converted to chemical energy as ATP and NADPH.

[#72] Chromosomes other than sex chromosomes are called
Correct Answer

(B) Autosomes

Explanation

Solution: Chromosomes other than sex chromosomes are called Autosomes. An autosome is one of the numbered chromosomes, as opposed to the sex chromosomes. Humans have 22 pairs of autosomes and one pair of sex chromosomes (XX or XY). Autosomes are numbered roughly about their sizes.

[#73] CAZRI does research on
Correct Answer

(A) Arid plants and crops

Explanation

Solution: CAZRI researches Arid plants and crops. The Central Arid Zone Research Institute (CAZRI) is one of the biggest research institutes of the Indian Council of Agricultural Research. CAZRI has the distinction of being one of the first institutes in the world exclusively devoted to arid zone research and development. The institute conducts multi-disciplinary research to seek solutions to the problems of farming in arid regions of the country.

[#74] Wind pollination is also known as
Correct Answer

(C) Anemophily

Explanation

Solution: Wind pollination is also known as Anemophily. When pollen is transported by wind, this is called anemophily. Anemophily or wind pollination is a form of pollination whereby pollen is distributed by wind. Almost all gymnosperms are anemophilous, as are many plants in the order Poales, including grasses, sedges and rushes. Many of the world's most important crop plants are wind-pollinated. These include wheat, rice, corn, rye, barley, and oats. Many economically important trees are also wind-pollinated.

[#75] The wetlands are threatened due to
Correct Answer

(C) Silting due to soil erosion

Explanation

Solution: The wetlands are threatened due to Silting due to soil erosion. A wetland is a place in which the land is covered by water salt, fresh, or somewhere in between either seasonally or permanently. Increasing human activities and their negative consequences cause pollution, degradation, and loss of wetlands. The main threats that the wetlands struggle with are unsustainable and non-eco-friendly human activities. Soil erosion caused by heavy floods is a matter of concern as it leads to several associated problems like changes in river course, causing loss of land, damage to the embankments, etc.