Carrier ions like Na⁺ facilitate the absorption of substances like:
Options
(a) Amino acids and glucose (b) glucose and fatty acids (c) fatty acids and glycerol (d) fructose and some amino acids
Correct Answer: […]
During gamete formation, the enzyme recombinase participates during
Options
(a) Metaphase – I (b) Anaphase – II (c) Prophase – I (d) Prophase – II
Correct Answer:
Prophase – I
Explanation:
Recombinase enzyme catalyzes […]
The two sub-units of ribosome remain united a critical ion level of
Options
(a) copper (b) manganese (c) magnesium (d) calcium
Correct Answer:
magnesium
Explanation:
The two subunits of ribosome remain united at a […]
Which one of the following does not differ in E.coli and Chlamydomonas
Options
(a) Ribosomes (b) Chromosomal Organization (c) Cell wall (d) Cellmembrane
Correct Answer:
Cellmembrane
Explanation:
Cell membrane of E. coli, a bacteria […]
At metaphase, chromosomes are attached to the spindle fibres by their:
Options
(a) satellites (b) secondary constrictions (c) kinetochores (d) centromere
Correct Answer:
kinetochores
Explanation:
Kinetochores are large protein complexes that bind the centromeres […]
The complex formed by a pair of synapsed homologous chromosomes is called
Options
(a) Kinetochore (b) Bivalent (c) Axoneme (d) Equatorial plate
Correct Answer:
Bivalent
Explanation:
During zygotene, second stage of meiosis I homologous […]
Which one of the following structures is an organelle within an organelle?
Options
(a) Ribosome (b) Peroxisome (c) ER (d) Mesosome
Correct Answer:
Ribosome
Explanation:
Ribosome are small naked (non membrane bound) particles made […]
What are those structures that appear as beads-on-string in the chromosomes when viewed under electron microscope?
Options
(a) Genes (b) Nucleotides (c) Nucleosomes (d) Base pairs
Correct Answer:
Nucleosomes
Explanation:
Under electron microscope the […]
Which one of the following type of plastids does not contain stored food material?
Options
(a) Amyloplasts (b) Chromoplasts (c) Elaioplasts (d) Aleuroplasts
Correct Answer:
Chromoplasts
Explanation:
Chromoplasts are non-photosynthetic coloured plastides which […]
Which one of the following is not considered as a part of the endomembrane system?
Options
(a) Golgi complex (b) Peroxisome (c) Vacuole (d) Lysosome
Correct Answer:
Peroxisome
Explanation:
Except peroxisome the remaining three […]
2017 Copyright Doctor Dreams Training Academy