Tag: common modes of vegetative propagation

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Multiple choice botany reproduction in angiospermic plants artificial vegetative propagation asexual modes of reproduction common modes of vegetative propagation

Artificial vegetative propagation is a .......... method.

  1. Slow

  2. Natural

  3. Man-made

  4. Both A and C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Artificial propagation is the creation of new life by other than the natural means available to an organism. Cutting plants' stems and placing them in compost is also a form of artificial reproduction. We can grow many plants from one plant by using the man-made methods. The process of growing many plants from one plant by man-made methods is called as the artificial propagation of plants.

Multiple choice botany reproduction in angiospermic plants artificial vegetative propagation asexual modes of reproduction common modes of vegetative propagation

The term scion is used in 

  1. Embryology

  2. Grafting

  3. Agamospermy

  4. Emasculation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Embryology is the science of development of the embryo. It is a branch of science which deals with the development of gametes, fertilization, and development of embryos.
Scion is the detached living part of the plant which is grafted to the stalk by the process of grafting. Grafting is a horticulture technique where the living detached portion of the plant is used to regenerate the growth. One plant is selected for its roots and this is called the stock or rootstock. The other plant is selected for its stems, leaves, flowers, or fruits and is called the scion. The joining of scion and stalk is known as inosculation. The techniques are mostly used in the asexual mode of reproduction. 
Agamospermy is an asexual reproduction in which seeds are produced from unfertilized ovules.
The removal of the anthers of a flower in order to prevent self-pollination is known as emasculation.
So, the correct answer is option B.
Multiple choice botany reproduction in angiospermic plants artificial vegetative propagation asexual modes of reproduction common modes of vegetative propagation

Mango and guava are propagated through

  1. Tissue culture.

  2. Grafting.

  3. Stem cuttings.

  4. Layering.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mango and guava are propagated through grafting. It is a horticulture technique where the living detached portion of the plant is used to regenerate the growth. One plant is selected for its roots and this is called the stock or rootstock. The other plant is selected for its stems, leaves, flowers, or fruits and is called the scion. The joining of scion and stalk is known as inosculation. The techniques are mostly used in the asexual mode of reproduction. 

So, the correct answer is option B.

Multiple choice reproduction in angiospermic plants artificial vegetative propagation asexual modes of reproduction common modes of vegetative propagation

Upon observing the slides showing stages of reproduction in Yeast and Amoeba .The correct observation are that of student(s)
students, I, II, III and IV, reported their observations as given below :
I.  Cytokinesis was seen in the Yeast cell.
II.  A chain of buds was seen due to reproduction in Amoeba.
III.  Elongated nucleus was dividing to form two daughter nuclei in Amoeba.
IV.  Single cells of Amoeba and yeast were undergoing binary fission and budding respectively.

  1. I and II

  2. II only

  3. III and IV

  4. I, III and IV
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yeast reproduces by budding, where a small bud forms and eventually detaches, while Amoeba reproduces by binary fission, where the nucleus divides followed by cytokinesis. Statement III correctly describes the nuclear division in Amoeba, and IV correctly identifies the respective modes of reproduction.

Multiple choice reproduction in angiospermic plants artificial vegetative propagation asexual modes of reproduction common modes of vegetative propagation

Organism produced by asexual reproduction are called

  1. clones

  2. offsprings

  3. factors

  4. both (A) and (B)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Since the organisms produced by asexual reproduction are completely identical to the parents due to no variation, they are called clones.

So, the correct option is  'clones'.

Multiple choice reproduction in angiospermic plants artificial vegetative propagation asexual modes of reproduction common modes of vegetative propagation

A 'clone' is defined as a collection of genetically _________________.

  1. Different individuals produced by sexual reproduction

  2. Different individuals by vegetative reproduction

  3. Identical individuals by sexual reproduction

  4. Identical individuals by vegetative reproduction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A clone is scientifically defined as a group of genetically identical individuals derived from a single common ancestor, typically produced through asexual or vegetative reproduction methods.

Multiple choice reproduction in angiospermic plants artificial vegetative propagation asexual modes of reproduction common modes of vegetative propagation

Clones do not appear during.

  1. Cuttings

  2. Budding

  3. Grafting

  4. Seed propagation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Clones are the result of asexual reproduction. Seed propagation involves sexual reproduction (fertilization), which introduces genetic recombination and variation, meaning the offspring are not clones.

Multiple choice reproduction in angiospermic plants artificial vegetative propagation asexual modes of reproduction common modes of vegetative propagation

Assertion: Clones are produced by sexual reproduction and same sexual process.

Reason: These are prepared by group of cells descended from many cells or by inbreeding of a heterozygous line

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Clones are asexually produced. These have same genotype and phenotype like parent.

So, the correct answer is 'If both the assertion and reason are false'