UP1995
In F₂ generation, a ratio of 1 : 4 : 6 : 4 : 1 is obtained instead of 9 : 3 : 3 : 1.
In F₂ generation, a ratio of 1 : 4 : 6 : 4 : 1 is obtained instead of 9 : 3 : 3 : 1. It indicates
Options
(a) incomplete dominance (b) […]
Test cross is a cross in between hybrid and
Test cross is a cross in between hybrid and
Options
(a) heterozygous recessive (b) heterozygous dominant (c) homozygous recessive (d) homozygous dominant
Correct Answer:
homozygous recessive
Explanation:
No explanation available. Be the first […]
The smallest RNA molecules are
The smallest RNA molecules are
Options
(a) mRNA (b) tRNA (c) rRNA (d) both (a) and (b)
Correct Answer:
tRNA
Explanation:
No explanation available. Be the first to write the explanation for this […]
Heterosis is also called
Heterosis is also called
Options
(a) mutation (b) hybrid vigour (c) variation (d) hybrid sterility
Correct Answer:
hybrid vigour
Explanation:
Hybrid vigour or heterosis is defined as the superiority of the hybrid over […]
In honey, the main constituent is
In honey, the main constituent is
Options
(a) calcium (b) sugar (c) protein (d) none of these
Correct Answer:
sugar
Explanation:
Honey is a mixture of sugar, minerals, water and antibodies. Sugar content […]
Rough endoplasmic reticulum differs from smooth walled endoplasmic reticulum
Rough endoplasmic reticulum differs from smooth walled endoplasmic reticulum due to the presence of
Options
(a) DNA (b) ribosomes (c) nucleus (d) ergastic substance
Correct Answer:
ribosomes
Explanation:
No explanation available. Be the […]
Which of the following is a single membrane structure?
Which of the following is a single membrane structure?
Options
(a) lysosomes (b) chloroplast (c) mitochondria (d) endoplasmic reticulum
Correct Answer:
lysosomes
Explanation:
No explanation available. Be the first to write the explanation […]
If the rate of addition of new members increases with respect to the individual
If the rate of addition of new members increases with respect to the individual lost from the population, then the graph obtained has
Options
(a) declined growth (b) zero population growth (c) exponential […]
Effect of pollution is on
Effect of pollution is on
Options
(a) mutation (b) cell division (c) crop rotation (d) ecological balance
Correct Answer:
ecological balance
Explanation:
No explanation available. Be the first to write the explanation for […]