Reproduction Of Organism(Aakash) Flashcards

Learn about life span and mode of reproduction.

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1
Q

Life Span of elephant

A

60-90 yrs

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2
Q

Life span of Rose

A

5-7 years

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3
Q

Life span of dog

A

25-30 yrs

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4
Q

Life span of butterflies

A

1-2 weeks

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5
Q

Life span of banana tree

A

25 yrs

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6
Q

Life span of cow

A

20-25 yrs

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7
Q

Life span of crow

A

15 yrs

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8
Q

Life span of parrot

A

140 yrs

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9
Q

Life span of crocodile

A

60 yrs

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10
Q

Life span of rice plant

A

3-4 months

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11
Q

Life span of fruitfly

A

2 weeks

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12
Q

Life span of Banyan Tree

A

200-300 yrs

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13
Q

Life span of horse

A

60 yrs

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14
Q

Life span of tortoise

A

100-150 yrs

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15
Q

Binary fission

A

It occurs in many single cell organisms belonging to kingdom monera (bacteria) , and Protista (Amoeba and Paramecium)

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16
Q

Simple Binary fission or irregular binary fission

A

Amoeba

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17
Q

Longitudinal binary fission

A

Euglena

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18
Q

Transverse binary fission

A

Bacteria
Paramecium
Diatoms

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19
Q

Asexual reproduction in yeast

A

Budding

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20
Q

Sporulation occurs in

A

Members of kingdom fungi(CONIDIA)

CONIDIA are non motile spores.

It is produced by special hyphal branches called conidiophores.

Simple plants such as algae(ZOOSPORES)…….

ZOOSPORES are motile spores.

Orgin of zoospore is endogenous because it’s formation occurs inside zoosporangia.

In unicellular green alga., chlamydomonas.. Zoospore is pyramid shape.

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21
Q

Fragmentation

A

Some algae(spirogyra), fungi, hydra

22
Q

Buds

A

Bud is a compact immature shoot protected by immature leaves.

23
Q

Root promoting chemicals are

A

IBA (Indole-3-butyric acid)

NAA(Naphthalene acetic acid)

24
Q

Progenitor of next generation in seed is

A

Embryo

25
Q

The vital link that ensures continuityof species between organism of one generation and the next is

A

Zygote

26
Q

Fleshy buds in aquatic plant is known as

A

Turions

27
Q

A portion of underground stem bearing bud forms a new plant in

A

Narcissus
Gladiolus
Freesia

28
Q

Which plant produce non motile male gamete?

A

Mangifera

Pinus

29
Q

Morphallaxis

A

Form of regeneration

It involves the reconstruction of whole body from a small fragment by reorganizing the existing cells. The regenerated organism is smaller than the original one.
Ex. Amoeba
However after the completion of process it grows and attains normal size after sometime.
Eg, hydra

30
Q

Epimorphosis

A

It replaces a lost organ from the body by proliferating new cells from the surface of a wound or injured part. Regeneration of an appendage in an arthropod, arm of a star fish and tail in a lizard occur by the process of epimorphosis.

31
Q

What does each individual of clone referred to as

A

Ramets

32
Q

Simple binary fission

A

Amoeba

33
Q

Longitudinal binary fission

A

Euglena

Vorticella

34
Q

Oblique binary fission

A

Ceratium

Gonyaylax

35
Q

Transverse binary fission

A
Paramecium
Diatoms
Bacteria
Planaria
In paramecium, transverse binary fission is preceeded by amitotic division of macronucleus and mitotic division of micronucleus.
36
Q

Gametes are released in water and moved towards each other

A

Chemotactically

37
Q

Entry of pollen tube into the embryo sach is under___________guidance.

A

Chemotropic

38
Q

Types of parthenogenesis :-

Arrhenotoky–bees, wasps and turkey(bird)

Thelytoky–Lacerta saxicola armeniaca, Typhlina brahmina, Rotifers, Whiptail

Amphytoky–Aphis(Aphid)

A

1-only males are produced
2-only females are produced
3-individual of any sex may develop

39
Q

Bisexual✌

Earthworm, tapeworm, leech

A

Unisexual👍

🐜ants, wasps, 🐝bees, 🦟mosquitoes, 🦗cockroaches, 🐸frog, 🐰rabbits, 👩‍⚕humans

40
Q

Name the organisms which exibit regular annual alternation of sexes

A

American oyster

41
Q

Very important point!!!

A

Honeybee and Hydra have same number of chromosome in their gametes.

42
Q

very important point!!!

A

Ant queen and squirrel have almost similar maximum life span.

43
Q

largest animal

A

whale

44
Q

Eggs are covered with a tough,leathery, coat in case of

A

Lizards

45
Q

External syngamy occurs in case of

A

Bony fishes

46
Q

How many compartments of testicular lobules each testis has?

A

250 compartments

47
Q

Each lobule contain how many seminiferous tubule?

A

1-3

48
Q

Castration

A

Removal of testes

49
Q

Which testicular hormone is secreted by interstitial cell of leydig?

A

Androgens

50
Q

Semen

A

The average volume of semen in an ejaculation is 2.5-5 ml with ba sperm count of 200-300 million sperms. Out of these sperms, for normal fertility, at least 60% sperms must have normal shape and size and atleast 40% of them show vigorous motility.