What map unit (centimorgan) is adopted in the construction of genetic maps?
a unit of distance between two expressed genes representing 100%cross over.
a unit of distance between genes on chromosomes, representing 1% cross over.
a unit of distance between genes on chromosomes, representing 50% cross over.
a unit of distance between two expressed genes representing 10% cross over.
Select the correct group of biocontrol agents.
Trichoderma, Baculovirus, Bacillus thuringiensis
Oscillatoria, Rhizobium, Trichoderma
Nostoc, Azospirillium, Nucleopolyhedrovirus
Bacillus thuringiensis, Tobacco Mosaic Virus, Aphids
A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
0.16 (AA); 0.24 (Aa); 0.36 (aa)
0.16 (AA); 0.48 (Aa); 0.36 (aa)
0.16 (AA); 0.36 (Aa); 0.48 (aa)
0.36 (AA); 0.48 (Aa); 0.16 (aa)
Select the incorrect statement.
Inbreeding is essential to evolve purelines in any animal.
Inbreeding selects harmful recessive genes that reduce fertility and productivity
Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.
Inbreeding increases homozygosity
Match Column-I with Column-II
Column I | Column II |
A. Saprophyte | i. Symbiotic association of fungi with plant roots |
B. Parasite | ii. Decomposition of dead organic materials |
C. Lichens | iii. Living on living plants or animals |
D. Mycorrhiza | iv. Symbiotic association of algae and fungi |
Choose the correct answer from the option given below
A - iii; B - ii; C - i; D - iv
A - ii; B - i; C - iii; D - iv
A - ii; B - iii; C - iv; D - i
A - i; B - ii; C - iii; D - iv
Which of the following glucose transporters is insulin-dependent?
GLUT II
GLUT III
GLUT IV
GLUT I
Select the incorrect statement.
Inmale grasshoppers 50% of sperms have no sex chromosomes.
In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
Human males have one of their sex-chromosome much shorter than the other.
Male fruit fly is heterogametic.
Which one of the following is not a method of in situ conservation of biodiversity?
Wildlife Sanctuary
Botanical Garden
Sacred Grove
Biosphere Reserve
Which of the following statements is incorrect?
Claviceps is a source of many alkaloids and LSD.
Conidia are produced exogenously and ascospores endogenously
Yeasts have filamentous bodies with long thread-like hyphae.
Morels and truffles are edible delicacies
C.
Yeasts have filamentous bodies with long thread-like hyphae.
Yeast is an unicellular sac fungus. It lacks filamentous structure or hyphae.
Which of the following contraceptive methods do involve a role of hormone?
Barrier method, Lactational amenorrhea, Pills
CuT, Pills, Emergency contraceptives.
Pills, Emergency contraceptives, Barrier methods.
Lactational amenorrhea, Pills Emergency contraceptives.