The ability of any stem cell to self-renew and differentiate depends on the structural organization and cellular function of specialized anatomic microenvironments known as stem cell niches. These sequestered regions are typically populated by a supportive network of stromal cells. Stem cell niche stromal cells express soluble and membrane-bound proteins that regulate cell survival, proliferation, differentiation, and trafficking. Which statements is true about HSCs?

#Question id: 5420

#General Aptitude

In the first 15 over of a 20-20 cricket match, the run rate was 4. What should be the run rate in the remaining 5 over to reach a target of 120?

#Question id: 5421

#General Aptitude

A car owner buys petrol at Rs.75, Rs.80 and Rs.85 per litre for three successive years. What is the average cost per litre of petrol if he spends Rs.4000 each year?

#Question id: 5422

#General Aptitude

The average of the first 50 natural numbers is

#Question id: 5423

#Unit 8. Inheritance Biology

Maximum height of plant is 200 cm and minimum average height is 80cm. if plant height is controle by 5 pairs of polygene, which of the following plant exhibit average phenotype?

#Question id: 5424

#Unit 8. Inheritance Biology

Imagine that height in corn plants is determined by three loci. The baseline height is 100 cm. Every + allele adds 10cm to the plant’s potential height, every – allele subtracts 10 cm from the plant’s potential height. The shortest possible plant and the tallest possible plant are mated to form an F1, what is the height of the F1?

#Question id: 5425

#Unit 8. Inheritance Biology

Two varieties of maize averaging 50 and 20 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 35 inches in height. Out Of the 16 F2 plants, the 5 are 35 inches. What is the probable number of independent segregating polygenes involved in this trait?