Reproduction In Organisms and Plants

Dry indehiscent single-seeded fruit formed from bi carpellary syncarpous inferior ovary is

The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in

Plants with ovaries having only one or a few ovules, are generally pollinated by

The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons?

An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is:

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called

Which one of the following is correctly matched about vegetables?

Even in absence of pollinating agents seed setting is assured in

An example of a seed with endosperm, perisperm, and caruncle is

Megaspores are produced from the megaspore mother cells after

The fleshy receptacle of syconus of fig encloses a number of:

Which one of the following is surrounded by a callose wall?

A fruit developed from hypathodium inflorescence is called

Endosperm is consumed by developing embryo in the seed of

Male gametes in angiosperms are formed by the division of

In which one of the following pollination is autogamous?

Cotyledons and testa respectively are edible parts in

Syngamy can occur outside the body of the organism in

Albuminous seeds store their reserve food mainly in

Product of sexual reproduction generally genetates:

Filiform apparatus is a characteristic feature of

Both, autogamy and geitonogamy are prevented in

Nucellar polyembryony is reported in species of

Animal vectors are required for pollination in

Vegetative propagation in mint occurs by:

Apomictic embryos in citrus arise from

Perisperm differs from endosperm in:

Seed coat is not thin, membranous in:

The viability of seeds is tested by

What is the function of germ pore?

Megasporangium is equivalent to:

The “Eyes” of the potato tuber are

Unisexuality of flowers prevents

Wind pollination is common in

Advantage of cleistogamy is:

Meiosis takes place in:

A drupe develops in

Which one of the following pairs of plant structures has haploid number of chromosomes?

Which one of the following statements is correct?

Which one of the following statements is not true about somatic embryogenesis?

Which of the following statements about Sporopollenin is correct?

What is common between vegetative reproduction and apomixis?

What does the filiform apparatus do at the entrance into ovule?

Which one of the following statements is correct?

Which one of the following statements is wrong?

Monoecious plant of Chara shows occurrence of :

Select the wrong statement about reproduction

Wind pollinated flowers are

Which one of the following is male gametes?

Which of these is not essential for allogamy?

Which of these cells is the largest cell of the ovule?

Which of the following four phases, in the post emergence life of an angiospermic plant, begins just after germination of seed and ends when the plant develops the capacity to reproduce?

Which is the part of female reproductive system?

When seed germinates, while the fruit is attached to the parent plant, it is called

When pollen tube enters into the ovule by integument, it is called

What is the number of chromosomes in aleurone layer if 10 number of chromosomes are found in megaspore mother cell?

Vegetative propagation by leaves occurs in

Vegetative fertilization leading to the formation of endosperm refers to

Vegetative reproduction by layering is found in

Upon fertilization while ovule develops into seed, which structure develops from a nucleus?

Under water pollination occurs in

Ubisch bodies are present in

Type of pollination in Commelina is

The ubisch bodies found in tapetal cells help in the formation of

The ovule during its development undergoes 180 degree curvature bringing the micropyle and chalaza in a line. The development of ovule conforms to

The ovule curvature is more pronounced and embryo sac become horse shoe shaped in which type of ovule?

The ovary after fertilization is converted into

The offsprings produced through which of the following process are not exactly similar to their parents?

The number of pollen grains, produced by each head inflorescence of family asteraceae which has 10 actinomorphic flowers, if each anther produces 20 pollen grains, are

The hilum and micropyle lie side by side and very close to each other in

The functional megaspore develops after three successive mitotic division into

The function of tapetum is

The formation of a gametophyte directly from sporophyte without meiosis is

The flower, which opens once in its life time, is called

The fertilization in which male gametes are carried through pollen tube is known as

The entry of pollen tube into the ovule through micropyle is called

The embryo in sunflower has

The development of a sporophyte from gametophytic tissue is called

The asexual reproduction of seed is called

The arrangement of megaspores in a tetrad in an angiosperm is

Tapetum is found in

Tapetal cells are characterized by the presence of

Stem cutting are commonly used for propagation of

Sexual reproduction in plants was discovered by

Ruminate endosperm is found in

Rarely among angiosperms the pollen grain develops in embryo sac. This abnormally is called as

Process in which fertilization occurs without fusion of gametes

Potatoes are cultivated by

Polyploidy can result from

Pollinia are present in which plant family?

Pollination is best defined as

Pollination by bats is called

Pollination by air is called

Pollination between different flowers of the same plant is called

Pollen grains are shed at which stage?

Pollen kitt substance is supplied by

Plants of edible banana are propagated by

Perisperm is

Palynology is study of

One advantage of cleistogamy is

Number of prothallial cells present in an anther is

Most common ovule, having funiculus lying close to the micropyle is called

Microsporohphylls contains

Microsporogenesis is the

Main condition for a plant to perform cross pollination is

Larger nucleus in a pollen grain is

In which of the following there is no sense of parthenocarpy?

In which of the following parthenocarpy makes no sense?

In some plants anthers and stamen grow and mature at same time. This phenomenon is called

In flowering plants, a mature male gametophyte is derived from a pollen mother cell by

In diplospory, embryo developed from diploid

In angiosperms, triple fusion results in the formation of

In angiosperms, the endosperm is

In angiosperms each microspore mother cell undergoing meiosis gives rise to a

In a population of species, in some plants the style is shorter. But in some others, it is longer than the stamens. This condition is called

In a monoecious plant

If there are 4 cells in anthers, what will the number of pollen grains?

If the cell of root in wheat plant have 42 chromosomes then the number of chromosome in the cells of pollen grain

If pollen of a flower falls on the stigma of another flower, belonging to the same plant, it is called

If diploid number of chromosomes in a plant is 40, then the number of chromosomes in a gamete will be

How many of the daughter cells obtained from a megaspore mother cell result in the matured ovum?

How many chromosomes are there in endosperm cell of Zea mays?

Heterozygosity is most favoured in plants following