The colour of the eye depends upon the pigment present in - (1) cornea (2) iris (3) rods (4) cones

The colour of the eye depends upon the pigment present in - (1) cornea (2) iris (3) rods (4) cones
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(2) iris Explanation: Eye colour is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in the iris pigment epithelium (located on the back of the iris), the melanin content within the iris stroma (located at the front of the iris), and the cellular density of the stroma.
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The colour of the eye depends upon the pigment present in (1) cornea (2) iris (3) rods (4) cones

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A person will have brown eyes, blue eyes or black eyes depending on the particular pigment present in the : (1) Pupil (2) Cornea (3) Iris (4) Choroid

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In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

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In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

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In eye donation, which one of the parts of donor’s eye is utilized? A. Lens B. Retina C. Cornea D. Iris

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In eye donation, which one of the following parts of donor's eye is utilized? (1) Iris (2) Lens (3) Cornea (4) Retina

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Light rays entering the eye is controlled by (a) pupil (b) iris (c) cornea (d) lens.

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The _______ the amount of light entering the eye. a)iris b)pupil c)cornea d)lens

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The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eye, is a derivative of

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What is the difference between Rods and Cones? -Biology

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Last Answer : answer:

Outer most layer of retina which holds sensory neuron like rods & cones is

Description : Outer most layer of retina which holds sensory neuron like rods & cones is

Last Answer : Outer most layer of retina which holds sensory neuron like rods & cones is

Outer most layer of retina which holds sensory neuron like rods & cones is

Description : Outer most layer of retina which holds sensory neuron like rods & cones is

Last Answer : Outer most layer of retina which holds sensory neuron like rods & cones is

With regard to dark adaptation: a. is a quicker process than light adaptation b. the sensitivity of the cones increases more rapidly than the rods c. it is monophasic in rod monochromatism d. the first limb of the curve represents rod recovery

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True statement about dark adaptation include: a. there is a shift in peak spectral sensitivity from 555 nm to 505 nm with dark adaptation b. rods are more sensitive than cone during dark adaptation c. biphasic changes only occur in retina which processes both rods and cones d. all above

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Night blindness is caused by: a. Central retinal vein occlusion b. Dystrophies of retinal rods c. Dystrophies of the retinal cones d. Retinal detachment

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Koeppe’s nodules are found in: a. Cornea b. Sclera c. Iris d. Conjunctiva

Description : Koeppe’s nodules are found in: a. Cornea b. Sclera c. Iris d. Conjunctiva

Last Answer : ANSWER: C 

Dense scar of cornea with incarceration of iris is known as: a. Adherent Leucoma b. Dense leucoma c. Ciliary staphyloma d. Iris bombe

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Last Answer : ANSWER: A 

In which part of the eye lies the pigment, that decides the colour of the eyes of a person? -Do You Know?

Description : In which part of the eye lies the pigment, that decides the colour of the eyes of a person? -Do You Know?

Last Answer : answer:

In which part of the eye lies the pigment, that decides the colour of the eyes of a person?

Description : In which part of the eye lies the pigment, that decides the colour of the eyes of a person?

Last Answer : Choroid

_________ is liquid present in the space between the cornea and lens of the eye. a)aqueous humor b)vitreous humor c)humor d)mucous

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Iris has no pigment in which people? -Do You Know?

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Last Answer : answer:

The following structures are of ectodermal origin: a. the retina and its retinal pigment epithelium b. iris stroma c. the sclera d. the ciliary muscle e. the corneal stroma

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Last Answer : the retina and its retinal pigment epithelium

Iris has no pigment in which people?

Description : Iris has no pigment in which people?

Last Answer : Blue-eyed people

The bright-flash ERG: a. comes only from the cones b. is generated in a fully dark adapted eye by the highest intensity of light c. can be used to assess the overall retinal integrity in the presence of media opacity d. is abnormal in patients with age-related macular degeneration

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Last Answer : can be used to assess the overall retinal integrity in the presence of media opacity

True statements about visual adaptation include: a. light adaptation takes longer than dark adaptation b. dark adaptation reaches its maximum in about 20 minutes c. in dark adapted eye, a higher intensity of light is required to stimulate cones than rodsd. people who wear red goggles in the light adapt quicker in the dark than those who do not wear them

Description : True statements about visual adaptation include: a. light adaptation takes longer than dark adaptation b. dark adaptation reaches its maximum in about 20 minutes c. in dark adapted eye, a higher intensity ... wear red goggles in the light adapt quicker in the dark than those who do not wear them

Last Answer : in dark adapted eye, a higher intensity of light is required to stimulate cones than rods

The refractive index of the material of a glass prism depends upon (a) The angle of the prism (b) The intensity of the incident light ray (c) The colour of the incident light ray (d) Size of the prism

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Last Answer : Ans:(c)

The emission of number of photo electrons depends upon a) The colour of the body b) The frequency of incident light c) The intensity of light d) All of the above

Description : The emission of number of photo electrons depends upon a) The colour of the body b) The frequency of incident light c) The intensity of light d) All of the above

Last Answer : c) The intensity of light

Black body radiations depends upon a) The shape and nature of the body b) The velocity of radiations and colour of the body c) The temperature of the body d) All of the above

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Last Answer : c) The temperature of the body

The heat dissipated by from a surface depends upon its temperature and its characteristics like colour, roughness etc. (a) conduction (b) convection (c) radiation (d) any ofthe above

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How can you tell if you scratched you cornea or if you simply have something stuck in your eye?

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What is the cornea of the eye ?

Description : What is the cornea of the eye ?

Last Answer : The cornea is the transparent part of the front of the eye. It covers the Irish and the Pupils. A pupil is a hole in the middle of the Irish that looks black in cataract-free eyes and gray or ... fall on the retinal retina. Then we see an object. The cornea helps in the penetration of light rays.

The part of the eye having the largest refractive index is - (1) cornea (2) aqueous humor (3) lens (4) vitreous humor

Description : The part of the eye having the largest refractive index is - (1) cornea (2) aqueous humor (3) lens (4) vitreous humor

Last Answer : (3) lens Explanation: Like a camera, the human eye uses a convex lens system to form a small, inverted, real image of an object in front of it. Lens is the part of the eye having the largest refractive index.