What is emasculation answer?
What is emasculation answer?
Emasculation is the removal of anthers in a bisexual flower to prevent self-pollination. It is a technique used by plant breeders to obtain the desired variety by crossing a plant with the desired pollen grain obtained by emasculation. Thus the correct answer is option D.
What does emasculation mean and why?
The process of removal of anthers from the flower is called as emasculation. It is done before dehiscence to prevent contamination of stigma with any undesired pollen and to ensure cross-pollination by desired pollens.
What is the meaning of begging?
to ask for as a gift, as charity, or as a favor: to beg alms; to beg forgiveness. to ask (someone) to give or do something; implore: He begged me for mercy.
What is the purpose of bagging the emasculated flowers?
Bagging of the emasculated flowers during hybridisation experiments is essential to prevent contamination of its stigma by undesired pollen grains.
What is the purpose of bagging?
Bagging is a technique used to prevent the fertilization of stigma from undesired pollen by covering the emasculated flower with butter-paper. It is useful in a plant breeding programme because only desired pollen grains for pollination and protection of the stigma from contamination of undesired pollen.
Why emasculated flowers are covered with bags of butter paper?
Answer: During artificial hybridization, emasculated flowers are covered with a bag of suitable size, generally made up of butter paper. This step is called bagging. It is to prevent contamination of its stigma with unwanted pollen.
Why is it that the anthesis emasculation performed before?
For this the knowledge of flower structure, mechanism of pollination, fertilisation and physiology of flowering is essential for this. In emasculation technique the stamens are removed before anthesis to obtain female parent and pollen from the desired male parent is transferred on to its stigma.
What is emasculation and bagging technique?
By emasculation the female flower can be artificially pollinated by the desired pollen grains. This is a process used during artificial hybridisation. Bagging : The emasculated flower is enclosed in a bag to avoid pollination by any unwanted pollen. This is called bagging.
Which time is perfect for pollination?
To prevent self-pollination of the selected seed parent, the anthers (pollen sacs) must be removed from the blooms before any pollen is released (Fig. 1). This is best accomplished at sunrise when blooms are in the one-third to one-half open stage.
How do you emasculate a plant?
Emasculation is done in the morning immediately after the flowers open. A thin rubber or a glass tube attached to a suction hose is used to suck the anthers from the flowers. The amount of suction used is very important which should be sufficient to suck the pollen and anthers but not gynoecium.
What does pedigree mean?
register recording a line of ancestors
What is a good pedigree?
An animal is considered to have a good pedigree when all its known ancestors are of the same type. 60 percent of dogs and ten percent of cats have pedigrees. 2.
What do circles represent in a pedigree?
In a pedigree, a circle represents a female, and a square represents a male. A filled-in circle or square shows that the individual has the trait being studied. The horizontal line that connects a circle and a square represents a marriage.
What is another word for pedigree?
What is another word for pedigree?
| line | lineage |
|---|---|
| birth | family |
| heritage | origin |
| parentage | race |
| bloodline | breed |
Is a pedigree?
A pedigree is a genetic representation of a family tree that diagrams the inheritance of a trait or disease though several generations. The pedigree shows the relationships between family members and indicates which individuals express or silently carry the trait in question.
What’s the opposite of pedigree?
Antonyms: crossbred. Synonyms: origin, lineage, stock, blood line, line, parentage, bloodline, stemma, blood, line of descent, ancestry, descent. pedigree, bloodline(adj)
What’s another word for lineage?
What is another word for lineage?
| descent | line |
|---|---|
| ancestry | birth |
| extraction | stock |
| family | genealogy |
| house | pedigree |
What is a person’s lineage?
Lineage, descent group reckoned through only one parent, either the father (patrilineage) or the mother (matrilineage). All members of a lineage trace their common ancestry to a single person. A lineage may comprise any number of generations but commonly is traced through some 5 or 10.
How do you use the word lineage?
Lineage sentence example
- It is only conferred on those of royal lineage and upon high officers of state.
- The Afghans are eternally boasting of their lineage , their independence and their prowess.
- The royal history traces the lineage of the kings to the ancient Buddhist monarchs of India.
What is the difference between lineage and descent?
In lineage, the common ancestor of lineage members is usually an actual remembered person. In case of lineage, one can trace one’s ancestors whereas in case of descent one often fails to trace one’s ancestors and the ancestor could be substituted by a mythical one symbolizing the origin of one’s descent.
What is descent rule?
Cultural recognition of children as kin of one or both parents is basis for the descent concept. Some societies trace through both parents (e.g., Canada and the United States).
