Reproduction in Organisms Test

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Reproduction in Organisms Test - 55

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Weekly Quiz Competition

Question 1
1 / -0

A think vertical underground stem having more diameter than length is _____________.

A
Sucker

B
Tunicated bulb

C
Corm

D
None of these
Question 2
1 / -0

Nucellar embryos found in Citrus sp. are.

A
Parthenogenesis

B
Aposporous

C
Apogamous

D
Adventive
Question 3
1 / -0

Menstrual cycle is not seen in ____________.

A
Humans

B
Orangutans

C
Lemurs

D
Chimpanzees

Solution

From order primate, menstruation is present in the organisms of suborder catarrhines which include humans, apes, Old World monkeys, chimpanzees, and orangutans while organisms of suborder strepsirrhines (e.g. lemurs) do not menstruate. Apart from above-listed primates menstruation also occurs in elephants, shrews, and certain bats.
So the correct answer here is option C.
Question 4
1 / -0

Which one of the following wavelengths is more effective for the photo morphogenetic phenomenon?

A
$$730$$nm

B
$$680$$nm

C
$$660$$nm

D
$$560$$nm
Question 5
1 / -0

Lectin of pollen is involved in _____________.

A
Parthenogenesis

B
Pollen sterility

C
Pollen allergy

D
Self-incompatibility

Solution

The correct answer is A.
Parthenogenesis is the method of reproduction in which ovum develops into an embryo and forms a new plant , without fertilisation. It has been observed that pollination is necessary, for parthenogenesis. It stimulates the process. Example, Ulothrix, Spirogyra and Solanaceae family plants reproduce by this method.
Question 6
1 / -0

Refer to the given showing levels of different hormones $$(P-S)$$ during menstrual cycle in a normal woman.
Identify the hormones $$P-S$$ and select the incorrect statement regarding them.

A
$$R$$ stimulates the ovarian follicles to produce estrogen during proliferative phase while $$Q$$ stimulates the corpus luteum of the ovary to secrete progesterone

B
Menstrual phase is caused by the reduction of $$P$$ and $$S$$

C
Proliferative phase is characterised by increased production of $$S$$ whereas secretory phase is charaterised by increased production of $$P$$

D
In males. $$Q$$ causes spermatogenesis whereas $$R$$ stimulates Leyding's cells to secrete testosterone
Question 7
1 / -0

Banana plant develops from:

A
Rhizome

B
Runner

C
Tuber

D
Corn
Question 8
1 / -0

Refer to the given Venn diagram and select the incorrect statement regarding P, Q and R.

A
R has three pairs of jointed legs which help it to walk, run and climb.

B
Q has paired and unpaired fins that help In movement in water.

C
P has special air sacs connected to the lungs which aid in respiration process.

D
Q is a shelled animal that possesses a muscular structure called foot which produces a series of wave like movements, pushing its body forward.

Solution

In the given Venn diagram, P, Q and R could be bird, fish and cockroach respectively.
Question 9
1 / -0

Choose the correct answers from the alternatives given.
Bacteria reproduce by :

A
mitosis

B
longitudinal fission

C
meiosis

D
prokaryotic fission

Solution

Most of the bacteria reproduce asexually by binary fission also known as prokaryotic fission. Binary fission involves the division of a single cell, which results in the formation of two cells that are genetically identical. So the correct option is 'Prokaryotic fission'.
Question 10
1 / -0

Choose the correct answers from the alternatives given.
Protostomes development includes all of the following except:

A
spiral cleavage

B
daughter cells sit in grooves formed by prior cleavage

C
cell fate is fixed and can develop in only one way

D
radial cleavage

Solution

Protostomia is a clade of animals. Together with the deuterostomes and xenacoelomorpha, its members make up the Bilateria, mostly comprising animals with bilateral symmetry and three germ layers. The major distinctions between deuterostomes and protostomes are found in embryonic development and are Early in development, deuterostome embryos undergo radial cleavage. So, the correct answer is "Radial cleavage".

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Re-Attempt Weekly Quiz Competition

Reproduction in Organisms Test - 55

Result

Reproduction in Organisms Test - 55

Score

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SHARING IS CARING

Question 1

Sucker

Tunicated bulb

Corm

None of these

Question 2

Parthenogenesis

Aposporous

Apogamous

Adventive

Question 3

Humans

Orangutans

Lemurs

Chimpanzees

Solution

Question 4

$$730$$nm

$$680$$nm

$$660$$nm

$$560$$nm

Question 5

Parthenogenesis

Pollen sterility

Pollen allergy

Self-incompatibility

Solution

Question 6

$$R$$ stimulates the ovarian follicles to produce estrogen during proliferative phase while $$Q$$ stimulates the corpus luteum of the ovary to secrete progesterone

Menstrual phase is caused by the reduction of $$P$$ and $$S$$

Proliferative phase is characterised by increased production of $$S$$ whereas secretory phase is charaterised by increased production of $$P$$

In males. $$Q$$ causes spermatogenesis whereas $$R$$ stimulates Leyding's cells to secrete testosterone

Question 7

Rhizome

Runner

Tuber

Corn

Question 8

R has three pairs of jointed legs which help it to walk, run and climb.

Q has paired and unpaired fins that help In movement in water.

P has special air sacs connected to the lungs which aid in respiration process.

Q is a shelled animal that possesses a muscular structure called foot which produces a series of wave like movements, pushing its body forward.

Solution

Question 9

mitosis

longitudinal fission

meiosis

prokaryotic fission

Solution

Question 10

spiral cleavage

daughter cells sit in grooves formed by prior cleavage

cell fate is fixed and can develop in only one way

radial cleavage

Solution

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