Which of following is correct about interaction?

A) Population growth of each species is limited more by intraspecific competition than by interspecific competition.

B) The species with the greater initial abundance wins out.

C) Population of each species coexist and reach at stable equilibrium point

D) Population growth of each species is limited by only intraspecific competition

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#Question id: 19877

#Unit 13. Methods in Biology

A recombinant DNA molecules is produced by

a) by cutting DNA from two source

b) Joining of two or more DNA fragments from different organism 

c) Joining of two or more DNA fragments originating from different organisms

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#Question id: 7240

#Unit 5. Developmental Biology

Given below are the list of some organism (column A) and determination of their dorsal-ventral axis (column B)

S.No.	Organism (Column A)	S.No	Determination of dorsal ventral axis (Column B)
A.	Chick	i.	sperm entry point and cortical rotation lead to specification of dorsal side opposite the point of sperm entry
B.	Zebrafish	ii.	initial symmetry-breaking event unknown. Localization of maternal Ndr1 and nuclear b -catenin species dorsal side and position of organizer
C.	Xenopus	iii.	interaction between inner cell mass and trophectoderm
D	Mouse	iv.	posterior marginal zone specifies ventral end of dorso-ventral axis

 Choose the correct option:

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#Question id: 7023

#Unit 5. Developmental Biology

When Chordin mRNA is injected into the dorsal region of Drosophila embryos, it induces:

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#Question id: 12338

#Unit 10. Ecological Principles

Ecology as a discipline directly deals with all of the following levels of biological organization except

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#Question id: 4340

#Unit 3. Fundamental Processes

There is a mutation that is found in E. coli in the repressor that results in a molecule known as a super-repressor because it represses the lac operon permanently. Which of the following characteristics would you expect to observe in such a mutant?