Which one is a wrong statement?

• Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms

• Mucor has biflagellate zoospores

• Haploid endosperm is typical feature of gymnosperms

• Haploid endosperm is typical feature of gymnosperms

Which one of the following hormones though synthesised elsewhere, is stored and released by the master gland?

• Antidiuretic hormone

• Luteinizing hormone

• Prolactin

• Prolactin

A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is:

• Eptatretus

• Myxine

• Neomyxine

• Neomyxine

Cell wall is absent in

• Aspergillus

• Funaria

• Mycoplasma

• Mycoplasma

The chitinous exoskeleton of arthropods is formed by the polymerisation of

• Keratin sulphate and chondraitin sulphate

• D-glucosamine

• N-acetyl glucosamine

• N-acetyl glucosamine

Metagenesis refers to

• Presence of different morphic forms

• Alternation of generation between asexual and sexual phases of an organism

• Occurrence of a drastic change in form during post-embyonic development

• Occurrence of a drastic change in form during post-embyonic development

Destruction of the anterior horn cells of the spinal cord would result in loss of

• Sensory impulses

• Voluntary motor impulses

• Commissural impulses

• Commissural impulses

Roots play insignificant role in absorption of water in

• Sunflower

• Pistia

• Pea

• Pea

Choose the wrong statement

• Penicillium is multicellular and produces antibiotics

• Neurospora is used in the study of biochemical genetics

• Morels and truffles are poisonous mushrooms

• Morels and truffles are poisonous mushrooms

20.

The function of the gap junction is to

• performing cementing to keep neighbouring cells together

• facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules.

• separate two cells from each other

• separate two cells from each other