Biology · Question 371
In which step is lysozyme released by the bacteriaophage?
- Attachement
- penetration
- injection
- replication
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Correct answer: B
penetration
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Biology · Question 372
The attraction between water molecules and cell wall of xylem is termed as:
- cohesion
- tension
- adhesion
- imbibition
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Correct answer: B
tension
Biology · Question 373
Fertilization of human egg occurs in:
- ovary
- uterus
- oviduct (fallopian tube)
- cervix
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Correct answer: C
oviduct (fallopian tube)
Biology · Question 374
The colloidal mixture of ions, organic and inorganic salts present in the nucleus is called;
- Nuclear membrane
- Nucleolus
- Nucleoplasm
- Chromosome
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Correct answer: C
Nucleoplasm
Biology · Question 375
In uncompetitive inhibition, the inhibitor binds with:
- Enzymes
- substrate
- ES-complex
- All of these
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Correct answer: C
ES-complex
Biology · Question 376
What is the purpsoe of calcium in the muscles?
- It helps move the myosin head into a high-engery position
- It allows troposmyosin to be pulled away from the actin filament
- both a and b
- none of these
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Correct answer: A
It helps move the myosin head into a high-engery position
Biology · Question 377
Portion of stomach which is present immediately after esophagus is known as
- Opsin portion
- Pyloric portion
- Gastric portion
- Cardiac portion
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Correct answer: D
Cardiac portion
Biology · Question 378
______________ is usual causative agent of genital herpes
- HSV-1
- HSV-2
- both a and b
- none of these
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Correct answer: B
HSV-2
Biology · Question 379
The term “survival of the fittest" was used by:
- Lamarck
- Darwin
- Herbert Spencer
- Mayr
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Correct answer: C
Herbert Spencer
Biology · Question 380
Which part of the human respiratory system provides the principal surface for gas exchange?
- Trachea
- Larynx
- Bronchi
- Alveoli
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Correct answer: D
Alveoli
Alveoli provide a large, thin and well-perfused surface where oxygen and carbon dioxide diffuse between air and blood.