XO Drosophila are:

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#Question id: 5281

#Unit 8. Inheritance Biology

In the mating Hfr Strs met+ his+ leu+ trp+ Ala+   X F- Strres met- his- leu- trp- Ala-. At regular interval time, the mating cells are interrupted and the cell suspensions plated on four different growth media with streptomycin. The amino acids in the growth media and the number of colonies observed on each are as follows:

Interrupted time	Composition of media					Growth
	His	Leu	Ala	Trp	Met
2   min	+	-	+	+	+	Yes
10 min	+	-	-	+	+	Yes
12 min	+	-	-	+	-	No
15 min	+	-	-	-	+	Yes
20 min	-	-	-	-	+	Yes

What is the order of transfer of the genes?

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#Question id: 20420

#Unit 3. Fundamental Processes

The LDL receptor gene consists of 18 exons, some of which are related to EGF precursor exons and some of which are related to the C9 blood complement gene, is an example of 

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#Question id: 23778

#Unit 7. System Physiology – Animal

Neurotransmitter release from the rods of retina- 

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#Question id: 13215

#Unit 6. System Physiology – Plant

KCl solutions separated by a membrane in The K+ and Cl– ions will permeate the membrane independently as they diffuse down their respective gradients of electrochemical potential, In biological systems, membranes are usually more permeable to K+ than to Cl–. Therefore, K+ will diffuse out of the cell  faster than Cl–, causing

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#Question id: 11380

#Unit 10. Ecological Principles

Which of the following is/are NOT valid explanation(s) for the observed pattern of species richness?