Subject

Biology

Class

NEET Class 12

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

31.

Emerson's enhancement effect and red drop have instrumental in the discovery of

  • two photosystems operating simultaneously

  • photophosphorylation and cyclic electron transport

  • oxidative phosphorylation

  • oxidative phosphorylation

3308 Views

32.

Select the correct statement

  • Salvinia, Gingko and Pinus all are gymnosperm

  • Sequoia is oneis one ot the talles trees

  • The leaves of gymnosperm are not well adapted to extremes of climate

  • The leaves of gymnosperm are not well adapted to extremes of climate

1383 Views

Advertisement

33.

Which of the following is not a characteristic feature during mitosis in somatic cells?

  • Disappearance of nucleolus

  • Chromosome movement

  • Synapsis

  • Synapsis


C.

Synapsis

Synapsis is pairing of homologous chromosomes. It occurs during zygotene stage of meiosis

1308 Views

Advertisement
34.

Blood pressure in the pulmonary artery is

  • more than that in the carotid

  • more than that in the pulmonary vein

  • less than that in the Vena cava

  • less than that in the Vena cava

2769 Views

Advertisement
35.

Spindle fibres attach on to

  • kinetochore of the chromosome

  • centrosome of the chromosome

  • kinetosome of the chromosome

  • kinetosome of the chromosome

1119 Views

36.

Stems modified into flat green organs performing the functions of leaves are known as

  • phyllodes

  • phylloclades

  • scales

  • scales

1845 Views

37.

In a chloroplast the highest number of protons are found in

  • lumen of thylakoids

  • inter membrane space

  • antennae complex

  • antennae complex

1836 Views

38.

Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?

  • The first word in biological name represents the genus name and the second is a specific epithet

  • The names are written in Latin and are Italicised

  • When written by hand, the names are to be underlined

  • When written by hand, the names are to be underlined

1517 Views

Advertisement
39.

In meiosis crossing over is initiated at

  • leptotene

  • zygotene

  • diplotene

  • diplotene

1276 Views

40.

The standard petal of papilionaceae corola is also called

  • pappus

  • vexillum

  • corona

  • corona

1245 Views

Advertisement