Recent questions tagged botany

What would happen if in a gene encoding a polypeptide of 50 amino acids, 25$^{th}$ codon (UAU) is mutated to UAA : -

asked Jul 24, 2018 by pady_1

1 answer

Christmas disease is another name for : -

asked Jul 24, 2018 by pady_1

0 answers

During transcription, the DNA site at which RNA polymerase binds is called : -

asked Jul 24, 2018 by pady_1

0 answers

When a cluster of genes show linkage behaviour they : -

asked Jul 24, 2018 by pady_1

0 answers

Degeneration of a genetic code is attributed to the : -

asked Jul 24, 2018 by pady_1

0 answers

Pattern baldness, moustaches and beard in human males are examples of : -

asked Jul 24, 2018 by pady_1

1 answer

Which one of the following conditions though harmful in itself, is also a potential saviour from a mosquito borne infectious disease :

asked Jul 24, 2018 by pady_1

2 answers

Which one of the following traits of garden pea studied by Mendel was a recessive feature : -

asked Jul 24, 2018 by pady_1

0 answers

The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes : -

asked Jul 24, 2018 by pady_1

1 answer

What does "lac" refer to in what we call the lac operon : -

asked Jul 24, 2018 by pady_1

1 answer

Two crosses between the same pair of genotypes or phenotypes in which the sources of the gametes are reversed in one cross, is known as : -

asked Jul 24, 2018 by pady_1

1 answer

Chromosomes in a bacterial cell can be 1–3 in number and : -

asked Jul 24, 2018 by pady_1

1 answer

Genes for cytoplasmic male sterility in plants are generally located in : -

asked Jul 24, 2018 by pady_1

2 answers

The linkage map of X-chromosome of fruitfly has 66 units, with yellow body gene (y) at one end and bobbed hair (b) gene at the other end. The recombination frequency between these two genes (y and b) should be : -

asked Jul 24, 2018 by pady_1

1 answer

Which of the following discoveries resulted in a Nobel Prize : -

asked Jul 24, 2018 by pady_1

1 answer

In the genetic code dictionary, how many codons are used to code for all the 20 essential amino acids : -

asked Jul 24, 2018 by pady_1

2 answers

During translation initiation in prokaryotes, a GTP molecule is needed in : -

asked Jul 24, 2018 by pady_1

2 answers

Which endangered animal is the source of the world's finest, lightest, warmest and most expensive wool-the shahtoosh : -

asked Jul 24, 2018 by pady_1

0 answers

Carcinoma refers to : -

asked Jul 24, 2018 by pady_1

2 answers

Escherichia coli is used as an indicator organism to determine pollution of water with ;-

asked Jul 24, 2018 by pady_1

1 answer

Down's syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder :-

asked Jul 24, 2018 by pady_1

1 answer

Two opposite forces operate in the growth and development of every population. One of them relates to the ability to reproduce at a given rate. The force opposing it is called :

asked Jul 24, 2018 by pady_1

1 answer

Viruses are no more "alive" than isolated chromosomes because : -

asked Jul 24, 2018 by pady_1

1 answer

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called : - (a)Photo autotrophs

asked Jul 23, 2018 by pady_1

1 answer

Jacob and Monad studied lactose metabolism in E.Coli and proposed operon concept. Operon concept applicable for : - (a)All prokaryotes

asked Jul 23, 2018 by pady_1

0 answers

Out of 64 codons, 61 codons code for 20 types of amino acid it is called : -

asked Jul 23, 2018 by pady_1

1 answer

A diseased man marries a normal woman. They get three daughter and five sons. All the daughter were diseased and sons were normal. The gene of this disease is : -

asked Jul 23, 2018 by pady_1

2 answers

In a DNA percentage of thymine is 20% then what is the percentage of guanine : -

asked Jul 23, 2018 by pady_1

1 answer

A plant of $F_1$-generation with genotype "AABbCC". On selfing of this plant what is the phenotypic ratio in F2-generation : -

asked Jul 23, 2018 by pady_1

2 answers

What is the reason of formation of embryoid from pollen grain in tissue culture medium

asked Jul 23, 2018 by pady_1

1 answer

If a diploid cell is treated with colchicine then it becomes : -

asked Jul 23, 2018 by pady_1

2 answers

Which statement is correct for bacterial transduction : -

asked Jul 23, 2018 by pady_1

1 answer

Transformation experiment was first performed on which bacteria : -

asked Jul 23, 2018 by pady_1

1 answer

Geocarpic fruit is : -

asked Jul 23, 2018 by pady_1

1 answer

Edible part in mango is : -

asked Jul 23, 2018 by pady_1

1 answer

Seed dormancy is due to the : -

asked Jul 23, 2018 by pady_1

0 answers

Which of the following absorb light energy for photosynthesis : -

asked Jul 23, 2018 by pady_1

1 answer

In Photosynthesis energy from light reaction to dark reaction is transferred in the form of : -

asked Jul 23, 2018 by pady_1

1 answer

Which type of association is found in between entomophilous flower and pollinating agent : -

asked Jul 23, 2018 by pady_1

2 answers

What is the direction of micropyle in anatropous ovule :-

asked Jul 23, 2018 by pady_1

0 answers

In Angiosperms pollen tube liberate their male gametes into the : -

asked Jul 23, 2018 by pady_1

1 answer

Number of wild life is continuously decreasing. What is the main reason of this : -

asked Jul 23, 2018 by pady_1

1 answer

What is true for individuals of same species

asked Jul 23, 2018 by pady_1

1 answer

Which of the following is absent in polluted water : -

asked Jul 23, 2018 by pady_1

1 answer

During the formation of bread it becomes porous due to release of $CO_2$ by the action of : -

asked Jul 23, 2018 by pady_1

1 answer

Ribosomes are produced in :

asked Jul 23, 2018 by pady_1

1 answer

Which of the following occurs more than one and less than five in a chromosome : -

asked Jul 23, 2018 by pady_1

1 answer

In which condition, the gene ratio remains constant for any species : -

asked Jul 23, 2018 by pady_1

1 answer

In fluid mosaic model of plasma membrane

asked Jul 23, 2018 by pady_1

0 answers

Reason of fast speciation in present day crop plants is -

asked Jul 23, 2018 by pady_1

1 answer

Ask Questions, Get Answers