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Biology > Growth And Development > Flashcards

Growth And Development Flashcards

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1
Q

The part of apical meristem which becomes separated from Apex by permanent tissues is called

A

Intercalary mystem

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2
Q

Egg of bird is

A

Polyelecthical type

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3
Q

The reconstruction of Lost parts of body

A

Regeneration

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4
Q

Science of aging is known as

A

Gerontology

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5
Q

In chick 🐣 the cleavage is

A

Irregular and discoidal type

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6
Q

The outcome of cleavage is

A

Cytoplasmic localisation

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7
Q

Blastula contains

A

Blastocoel

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8
Q

Fertilized egg is laid —– after fertilization

A

24 hours

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9
Q

Fertilize egg to be kept at which temperature by mother hen or artificially incubator

A

36-38°C

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10
Q

Hatching takes place in how many days

A

20

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11
Q

Fishes reptiles and birds have a cleavage

A

Meroblastic type or incomplete

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12
Q

The cleavage in birds is restricted to the blastodisc lying on the top of your this type of cleavage is termed as

A

Discoidal cleavage

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13
Q

Embryo becomes rounded mass of blastomeres and therefore is called

A

Morula

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14
Q

Fluid filled cavity of blastula is called

A

Blastocoel

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15
Q

Egg is laid almost at this stage

A

Blastula

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16
Q

Next stage followed by blastula is called

A

Gastrula

17
Q

Neural tube arise from

A

Nervous system

18
Q

Process by which neurula is formed is called ?

A

Neurulation

19
Q

Progressive detrioration in the normal structure and function of tissue is called

A

Aging

20
Q

Which have great power of a regeneration

A

Sponges

21
Q

Salamanders and lizards can regenerate their

A

Tails

22
Q

Regeneration in birds is limited

A

Small wounds

23
Q

Small size of the skull ?

A

Microcephaly

24
Q

Split in upper lip and gap in roof of mouth

A

Cleft palate

25
Q

Excessive number of fingers are toes

A

Polydactyly

26
Q

When heart is placed towards the right side of chest

A

Dextrocardia

27
Q

Abnormal sickle shaped RBC

A

Sickle cell anaemia

28
Q

Female sexual deffect

A

Turner’s syndrome

29
Q

Male sexual edffect

A

Kline Felter syndrome

30
Q

Fragile RBC cause hemolytic anaemia

A

Thalassemia

31
Q

Inability of the blood to cloth

A

Haemophilia

32
Q

Physical & physical retardation

A

Down syndrome

33
Q

The growth of plant organ when related with the growth of other organs are called

A

Correlation

34
Q

Animal begin their life as a single diploid cell called

A

Zygote

35
Q

External condition which alter the rate of growth

A

Temperature
light
intensity of light
oxygen
carbon dioxide
nutrients

36
Q

Secondary growth may be defined as :

A

Increase in diameter of stem and root due to activity of secondary meristem called cambium

37
Q

Which contain lateral meristem

A

Gymnosperms and most dicots

Biology (20 decks)

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