Showing posts with the label Tissue cultureShow All

Hairy root cultures are produced using _______________.

6/27/2022 08:22:00 pm

A. Agrobacterium tumefaciens B. Agrobacterium rhizogenes    C. Agrobacterium vitis D. …

A low auxin : cytokinin ratio leads to ______________.

6/27/2022 08:20:00 pm

A. Shoot formation B. Root formation C. Fruit formation D. none of these

Indole -3 acetic acid is ______________.

6/27/2022 08:18:00 pm

A. a gibberellin B. a cytokinin C. an auxin D. none of these

Explants for tissue culture can be taken from ________.

6/27/2022 08:16:00 pm

A. Bud B. Root tip C. Nodal stem segments D. All of these

Which technique is used to resist the disease in tissue culture?

6/26/2022 08:11:00 pm

A. anther culture B. meristem culture C. soma clonal culture D. none of these

Cell suspension cultures of __________.

6/26/2022 05:08:00 pm

A. Cinchona produces quinine B. Digitalis lanata produce digitoxin C. Both a and b D. …

Plants are totipotent because _____________.

6/26/2022 05:06:00 pm

A. Each cell has the full genetic potential of the organism B. A single cell could bec…

Tissue culture does not involve ________.

6/26/2022 03:59:00 pm

the A. The growth of tissue in the artificial medium B. Asexual reproduction C. Use of…

In order to obtain virus free plants through tissue culture the best method is ________?

6/24/2022 08:02:00 pm

A. Callus culture B. Meristem culture C. Embryonic culture D. Haploid culture

The direct DNA uptake by protoplast is stimulated by the chemical __________.

6/24/2022 06:39:00 pm

A. cellulose B. sucrose C. PEG D. mannose

The enzyme required to obtain wall free or naked protoplasts are __________________.

6/23/2022 06:12:00 pm

A. cellulase and proteinase B. cellulase and pectinase C. cellulase and amylase D. am…

Differentiation of shoot in plant tissue culture is controlled by _______.

6/22/2022 04:46:00 pm

A. high auxin: cytokinin ratio B. high cytokinin: auxin ratio C. high gibberellin: cyt…

Haploid culture is got from ________________.

6/22/2022 04:42:00 pm

A. leaves B. root tips C. pollen grain D. bud

Haploid plants can be obtained from

6/22/2022 04:39:00 pm

A. bud culture B. leaf culture C. root culture D. anther culture

In tissue culture medium, the embryoids formed from pollen grains is due to

6/22/2022 04:37:00 pm

A. cellular totipotency B. organogenesis C. double fertilization D. test tube culture

In tissue culture of parenchyma, mitosis is accelerated in the presence of

6/22/2022 04:33:00 pm

A. auxin only B. cytokinin only C. auxin and cytokinin D. auxin and gibberellin

In plant tissue culture, the callus tissues can be regenerated into complete plantlets primarily by altering the concentration of

6/22/2022 04:30:00 pm

A. sugars B. vitamins C. amino acids D. hormones

A major application of embryo culture is in

6/22/2022 04:27:00 pm

A. clonal propagation B. production of embryoids C. overcoming hybridization barriers …

The problem of necrosis and gradual senescence while performing tissue culture can be overcome by

6/22/2022 04:23:00 pm

A. spraying auxin B. spraying cytokinin C. suspension culture D. subculture

The final stage in tissue culture program before the new plants are taken out for cultivation in the field is known as

6/22/2022 04:20:00 pm

A. hardening B. micropropagation C. callogenesis D. embryogenesis