A woman with normal vision, but whose father was colour blind, marries a colour blind man. Suppose that the fourth child of this couple was a boy. This boy (a) may be colour blind or may be of normal vision (b) must be colour blind (c) must have normal colour vision (d) will be partially colour blind since he is heterozygous for the colour blind mutant allele

A woman with normal vision, but whose father was
colour blind, marries a colour blind man. Suppose
that the fourth child of this couple was a boy. This
boy
(a) may be colour blind or may be of normal vision
(b) must be colour blind
(c) must have normal colour vision
(d) will be partially colour blind since he is
heterozygous for the colour blind mutant allele
by

1 Answer

Answer :

(a) may be colour blind or may be of normal vision
by

Related questions

A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind? (a) 25% (b) 0% (c) 50% (d) 75%

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Last Answer : (c) 50%

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Last Answer : Zero percent

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Last Answer : (3) Zero percent

If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is (a) 0 (b) 0.5 (c) 0.75 (d) 1.

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Last Answer : a) 0

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Last Answer : (a) all colour blind

When a color blind man marries a woman pure for normal color vision, it is probable that one of the following situations may result. Is it probable that a) all the children will be color blind b) all the grandchildren will be color blind c) only the sons will be colorblind d) half the grandsons will be color blind

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Last Answer : b) 0.25

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Last Answer : (b) 50% colour-blind

Of both normal parents, the chances of a male child becoming colour blind are (a) none (b) possible only when all the four grand parents had normal vision (c) possible only when father’s mother was colour blind (d) possible only when mother’s father was colour blind.

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Last Answer : (d) possible only when mother’s father was colour blind.

A man of A-blood group marries a woman of AB blood group. Which type of progeny would indicate that man is heterozygous A? (a) AB (b) A (c) O (d) B

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Last Answer : (a) both blue eyed and brown eyed 1 : 1

A colour blind girl is rare because she will be born only when (a) her mother and maternal grand father were colour blind (b) her father and maternal grand father were colour blind(c) her mother is colour blind and father has normal vision (d) parents have normal vision but grand parents were colour blind

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Last Answer : b) her father and maternal grand father were colour blind

A marriage between normal visioned man and colour blind woman will produce offspring (a) colour blind sons and 50% carrier daughter (b) 50% colourblind sons and 50% carrier daughter (c) normal males and carrier daughters (d) colour blind sons and carrier daughters.

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Last Answer : (d) colour blind sons and carrier daughters.

Both husband and wife have normal vision though their fathers were colour blind. The probability of their daughter becoming colour blind is (a) 0% (b) 25% (c) 50% (d) 75%.

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Last Answer : (a) 0%

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.Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele expresses itself C. Pleiotropy (iii) In a heterozygous organism both alleles express themselves fully D. Polygenic (iv) A single gene inheritance influences many characters A B C D (a) (iv) (i) (ii) (iii) (b) (iv) (iii) (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

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A colour-blind person cannot – (1) See distant objects (2) See black colour (3) Distinguish between certain colours (4) Have persistence of vision

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Before a woman marries a man, does she wonder what their children will look like?

Description : Before a woman marries a man, does she wonder what their children will look like?

Last Answer : I didn’t.

A white woman marries a black man. They have four children — 2 sons and 2 daughters. What proportion of these chi 1dren is likely to be black (a) 25% (b) 50% (c) 100% (d) none

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A man with blood group ‘A’ marries a woman with blood group ‘B’. What are all the possible blood groups of their offspring? (a) A, B, AB and O (b) O only (c) A and B only (d) A, B and AB only

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Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character. (a) The female parent is heterozygous. (b) The parents could not have had a normal daughter for this character. (c) The trait under study could not be colour blindness. (d) The male parent is homozygous dominant.

Description : Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character. (a) The female parent is heterozygous. (b) The parents could not ... The trait under study could not be colour blindness. (d) The male parent is homozygous dominant.

Last Answer : (a) The female parent is heterozygous.

A mother gave birth to six kids. The first daughter's name is July. The second daughter's name is August. The third daughter's name is September. The fourth daughter's name is October. The next child was a boy, therefore, she named him November. The mother was planning on having a girl named December, but it turned out that she got a boy. If she didn't name him December, what is his name? -Riddles

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Last Answer : Jason. She took the first letter of the names of her children. July, August, September, October, November.

A mutant strain of T4 - Bacteriophage, R-II, fails to lyse the E. coli but when two strains R-IIX and R-IIY are mixed then they lyse the E. coli. What may be the possible reason? (a) Bacteriophage transforms in wild. (b) It is not mutated. (c) Both strains have similar cistrons. (d) Both strains have different cistrons.

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Last Answer : (d) Both strains have different cistrons.

Parents are followers of the hypocrite Pir , what should a child do ? My father died ten years ago and he used to pray five times , but at home. And both father and mother were disciples of Atarshi. I didn't let my mother go after my father died. However, because I am in a madrasa, my mother does not tell me to go there from time to time. But if you don't tell your mother to go , she says , does Pir do the opposite ? By the disciples. Is Pir bad or not ? Now all I know from Hazrat is that my father died before I was admitted to the madrasa. And there was no one to show Dad the right way. What should I do for my father now ? And what is the answer to this question ? Since I don't know much about Atarshi Pir. Obliged by the answer.

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Last Answer : All Haqqani Ulama Mashayikh agree that the said Pir was a hypocrite . Originally, the man was just a metric pass. (See! Atarshir Darbar Atarshir Kafela , page-13 , date of publication , January 1974. ... pray for you , may Allah accept you as a great scholar. May Allah guide your mother. Amen.

In many types of cancer, proteins that are crucial regulators of the cell cycle are often mutated and cannot function correctly. This leads to the evasion of apoptosis and to the loss of control of cell proliferation? For example, many cancer cells carry two mutant copies of the gene that codes for a tumor suppressor protein named p53. What is the normal function of p53 that is lost when it is mutated?

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Last Answer : Normally, p53 senses DNA damage and acts as a transcription factor for checkpoint control genes.

Four members of a band are walking to a night concert. They decide to take a shortcut, but must cross a bridge. Luckily they have one flashlight. Because of the varying size of their instruments, it takes each member a different amount of time to cross the bridge - it takes the first person one minute, the second person two minutes, the third person five minutes and the fourth person ten minutes. They must cross the bridge in pairs, travelling at the slower speed so if the one minute person went with the ten minute person, it would take a total of ten minutes. Since there is only one flashlight, one person must come back across the bridge, then another pair can cross. They only have 17 minutes to cross the bridge and still get to the concert on time. What order should they cross to get eve

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Last Answer : First, the one minute person and the two minute person must cross the bridge, for a total of two minutes. Then the one minute person should come back with flashlight - total of three ... minutes) and gets the one minute person and they cross together bringing the total to seventeen minutes.

A blind man is alone on a deserted island. He has two blue pills and two red pills. He must take exactly one red pill and one blue pill or he will die. How does he do it? -Riddles

Description : A blind man is alone on a deserted island. He has two blue pills and two red pills. He must take exactly one red pill and one blue pill or he will die. How does he do it? -Riddles

Last Answer : Break each of the pills in half, as you do this pop one half in your mouth and lay the other half aside for tomorrow. When he's done this with all four pills he will have consumed one red pill and one blue pill. And have the same left over.

In order to have a recessive trait an organism must have what copies of he recessive allele?

Description : In order to have a recessive trait an organism must have what copies of he recessive allele?

Last Answer : What is the answer ?

What is the attitude of the jogger toward the kid before he realizes the boy is blind?

Description : What is the attitude of the jogger toward the kid before he realizes the boy is blind?

Last Answer : What is the answer ?

Suppose you want to send in the mail a valuable object to a friend. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached and you have several locks with keys. However, your friend does not have the key to any lock that you have. You cannot send the key in an unlocked box since it may be stolen or copied. How do you send the valuable object, locked, to your friend - so it may be opened by your friend? -Riddles

Description : Suppose you want to send in the mail a valuable object to a friend. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached ... you send the valuable object, locked, to your friend - so it may be opened by your friend? -Riddles

Last Answer : Send the box with a lock attached and locked. Your friend attaches his or her own lock and sends the box back to you. You remove your lock and send it back to your friend. Your friend may then remove the lock she or he put on and open the box.

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Last Answer : Send the box with a lock attached and locked. Your friend attaches his or her own lock and sends the box back to you. You remove your lock and send it back to your friend. Your friend may then remove the lock she or he put on and open the box.

If a man marries 4 people, will they have any problem ? Is it possible to get syphilis or any other sexually transmitted disease ?

Description : If a man marries 4 people, will they have any problem ? Is it possible to get syphilis or any other sexually transmitted disease ?

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Four people are sitting around a campfire after a long day of recreation, when one man comments: 'Do you realize that around this campfire, the four of us include a mother, father, brother, sister, son, daughter, niece, nephew, aunt, uncle and a couple cousins'?. If everyone is related by blood (with no unusual marriages) how is this possible? -Riddles

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Last Answer : The campfire circle includes a woman and her brother. The woman's daughter and the man's son are also present.

Do you suppose that the blind dream differently than the sighted?

Description : Do you suppose that the blind dream differently than the sighted?

Last Answer : I would imagine so. Those who had sight at one time might still have visual components, but those that never did probably dream much like they experience waking life.

Would a flash grenade blind you if you were wearing night vision goggles?

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Last Answer : answer:I found this data point. I cannot vouch for its validity: “The main drawback of night vision is that it limits the width of your vision slightly, and increases the blindness effect caused by flash grenades.”

Is it true that if we eat chillies everyday, our vision will be go blurry or blind,?

Description : Is it true that if we eat chillies everyday, our vision will be go blurry or blind,?

Last Answer : I don't think that is true, if it were true very many Indians and mexicans would be blind. Since time in memorial indians have used chillies in practically every food they prepare, and so far i ... to, because your head will be spinning for sure. Maybe Indians should come out amd expound on this.

Is it possible to be legally blind and have perfect vision?

Description : Is it possible to be legally blind and have perfect vision?

Last Answer : Yes. It is very much possible. Vision is totally subjective.That means the person see the things is perceived by the subjectonly. So you can bribe and get the blindness certificate. Most ofthe developed ... and the doctor. Usually it isnot possible to cheat the expert. But it's not impossible.

All the following associated open angle glaucoma include all the following except: a. Roenne’s nasal step b. Enlarged blind spot c. Generalized depression of isopters d. Loss of central fields e. Tubular vision

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Last Answer : ANSWER: D  

A fruit fly is heterozygous for sex-linked genes, when mated with normal female fruit fly, the males specific chromosome will enter egg cell in the proportion (a) 3 : 1 (b) 7 : 1 (c) 1 : 1 (d) 2 : 1.

Description : A fruit fly is heterozygous for sex-linked genes, when mated with normal female fruit fly, the males specific chromosome will enter egg cell in the proportion (a) 3 : 1 (b) 7 : 1 (c) 1 : 1 (d) 2 : 1.

Last Answer : (c) 1 : 1

What allele whose trait only shows up when no dominant allele is present?

Description : What allele whose trait only shows up when no dominant allele is present?

Last Answer : recessive alle

How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY? a. 2 b. 4 c. 8 d. 16

Description : How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY? a. 2 b. 4 c. 8 d. 16

Last Answer : a. 2