Reproduction (NEST)
Covers plant and animal reproduction including microsporangium structure, embryo sac, pollination, fertilization, embryonic development, and human reproductive processes.
Questions
In the word parthenocarpous, parthenos stands for virgin, while carpous stands for
- stem
- leaf
- fruit
- root
- flower
The process in which androecium matures and sheds pollen before maturation of gynoecium is known as
- protogyny
- protandry
- self incompatibility
- inter specific sexual incompatibility
- intra specific sexual incompatibility
Which of the following plays a predominant role in its dehiscence?
- Gynoecium
- Endothecium
- Tapetum
- Epidermis
- Androecium
Embryosac consists of
- egg and polar nuclei
- egg
- synergids
- antipodal cells
- synergids and antipodal cells
The inner most layer of microsporangium that nourishes a developing pollen grain is known as
- tapetum
- endodermis
- endothecium
- sporogenous cell
- sporopollenin
Name the organic substance that can withstand extreme environment conditions.
- Lignin
- Cuticle
- Cellulose
- Testa
- Sporopollenin
______ is a type of allergy which is usually caused by pollens.
- Anaphylaxis
- Mold allergy
- Rhinitis
- Latex allergy
- None of these
An egg having little yolk is known as
- alectithal
- mesolecithal
- microlecithal
- macrolecithal
- None of these
Kappa particles are made up of
- lipids and fats
- lignin and cellulose
- DNA and proteins
- cellulose and chitin
- carbohydrates and proteins
The process of differentiation of cells at specific places in the germ layer to form tissue, organ and organ system is called
- blastulation
- organogenesis
- fertilisation
- gametogenesis
- spermatogenesis
The union of male and female gametes in humans to form a zygote is also known as
- gestation
- gastrulation
- segmentation
- conception
- parturition
Which of the following mature(s) during menstrual cycle?
- Ootid
- Ovum
- Oocyte
- Gametocyte
- All of the above
The gestation period of a rhesus monkey is
- 270 days
- 310 days
- 213 days
- 280 days
- 250 days
The attachment of blastocyst to the uterine wall is known as
- fertilisation
- implantation
- gestation
- parturition
- All of the above
Shell coiling that takes place in zonitoides nitidus snail is known as
- sinistral coiling
- dextral coiling
- neither sinistral nor dextral coiling
- None of these
- All of the above