Explain the mechanism of sex determination in humans. Or With the help of a flow chart explain in brief how the sex of a newborn is genetically determined in human beings. Which of the two parents, the mother or the father, is responsible for determination of sex of a child? -Biology

Explain the mechanism of sex determination in humans. Or With the help of a flow chart explain in brief how the sex of a newborn is genetically determined in human beings. Which of the two parents, the mother or the father, is responsible for determination of sex of a child? -Biology
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Mechanism of Sex Determination in Human Beings: In human beings, the sex of the individual is genetically determined.Sex determination is the process by which sex of a new born individual can be determined. Human beings have 1 unpaired sex chromosome. Sex chromosome of male is XY and of female is XX. Sex of a child depends on what happens at fertilisation. Thus, father is responsible for the determination of the sex of a child.
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By which the sex of a child is determined before birth? (1) Sperms of father (2) Foetus of mother (3) Both (1) and (2) (4) Nutrition of mother

Description : By which the sex of a child is determined before birth? (1) Sperms of father (2) Foetus of mother (3) Both (1) and (2) (4) Nutrition of mother

Last Answer : (2) Foetus of mother Explanation: The gender of the baby can be ascertained accurately after more or less than seven weeks of pregnancy. During this period of pregnancy, the fetal DNA is ... in the mother's blood. Thus, identifying the fetus gender through prenatal gender testing is easier.

By which the sex of a child is determined before birth ? (1) Sperms of father (2) Foetus of mother (3) Both (1) and (2) (4) Nutrition of mother

Description : By which the sex of a child is determined before birth ? (1) Sperms of father (2) Foetus of mother (3) Both (1) and (2) (4) Nutrition of mother

Last Answer : Foetus of mother

.In Drosophila, the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelter’s syndrome in male. It proves (a) in human beings Y chromosome is active in sex determination (b) Y chromosome is active in sex determination in both human beings and Drosophila (c) in Drosophila Y chromosome decides femaleness (d) Y chromosome of man have genes for syndrome.

Description : .In Drosophila, the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelter's syndrome in male. It proves (a) in human beings Y chromosome is active in ... (c) in Drosophila Y chromosome decides femaleness (d) Y chromosome of man have genes for syndrome.

Last Answer : (a) in human beings Y chromosome is active in sex determination

What determines the sex of a child? (1) Chromosomes of the father (2) Chromosomes of the mother (3) Rh factor of the parents (4) Blood group of the father

Description : What determines the sex of a child? (1) Chromosomes of the father (2) Chromosomes of the mother (3) Rh factor of the parents (4) Blood group of the father

Last Answer : (1) Chromosomes of the father Explanation: In humans and several other species of animals, the father determines the sex of the child. In the XV sex-determination system, the female-provided ovum ... X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively.

What determines the sex of a child ? (1) Chromosomes of the father (2) Chromosomes of the mother (3) Rh factor of the parents (4) Blood group of the father

Description : What determines the sex of a child ? (1) Chromosomes of the father (2) Chromosomes of the mother (3) Rh factor of the parents (4) Blood group of the father

Last Answer : Chromosomes of the father

”The sex of the children is determined by what they inherit from their father and not their mother.” Justify. -Biology

Description : ”The sex of the children is determined by what they inherit from their father and not their mother.” Justify. -Biology

Last Answer : It is because a child who inherits an X chromosome from her father will be a girl and one who inherits a Y chromosome from his father will be a boy. But all children inherit a X chromosome from their mother regardless of whether they are boys or girls.

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Who is responsible for the sex determination of a child?

Description : Who is responsible for the sex determination of a child?

Last Answer : Father

How is sex determined in human beings? -Biology

Description : How is sex determined in human beings? -Biology

Last Answer : answer:

Sex is determined in human beings (a) by ovum (b) at time of fertilisation (c) 40 days after fertilisation (d) seventh to eight week when genitals differentiate in fetus.

Description : Sex is determined in human beings (a) by ovum (b) at time of fertilisation (c) 40 days after fertilisation (d) seventh to eight week when genitals differentiate in fetus.

Last Answer : (b) at time of fertilisation

25. The mechanism of ‘sex determination’ in birds is ... f) XX -XY b) ZZ -ZW c) ZZ -WW d) XX -XO

Description : 25. The mechanism of ‘sex determination’ in birds is ... f) XX -XY b) ZZ -ZW c) ZZ -WW d) XX -XO

Last Answer : b) ZZ -ZW

5. The mechanism of ‘sex determination’ in birds is ... c) XX -XY b) ZZ -ZW c) ZZ -WW d) XX -XO

Description : 5. The mechanism of ‘sex determination’ in birds is ... c) XX -XY b) ZZ -ZW c) ZZ -WW d) XX -XO

Last Answer : b) ZZ -ZW

Soil colour determination is standardized and determined by the comparison of the soil colour to? a Tensiometer b Gypsum block c Munsell chart d None of the above

Description : Soil colour determination is standardized and determined by the comparison of the soil colour to? a Tensiometer b Gypsum block c Munsell chart d None of the above

Last Answer : c Munsell chart

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Description : A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls and 5 normal sons. It may be which type of genetic disease? (a) Sex-influenced disease (b) Blood group inheritance disease (c) Sex-linked disease (d) Sex-recessive disease

Last Answer : (c) Sex-linked disease

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Description : In our society women are blamed for producing female children. Choose the correct answer for the sex-determination in humans. (a) Due to some defect like aspermia in man. (b) Due to the genetic make up of the ... . (c) Due to the genetic make up of the egg. (d) Due to some defect in the women.

Last Answer : (b) Due to the genetic make up of the particular sperm which fertilises the egg.

Once parentage has been determined through DNA testing, can a court force the mother of the out of wedlock child to change the childs last name to that of the father?

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Sex determination of child is done by whose chromosome? -General Knowledge

Description : Sex determination of child is done by whose chromosome? -General Knowledge

Last Answer : The answer is 'Father'

Sex determination of child is done by whose chromosome? -General Knowledge

Description : Sex determination of child is done by whose chromosome? -General Knowledge

Last Answer : answer:

Sex determination of child is done by whose chromosome? -General Knowledge

Description : Sex determination of child is done by whose chromosome? -General Knowledge

Last Answer : answer:

Sex determination of child is done by whose chromosome?

Description : Sex determination of child is done by whose chromosome?

Last Answer : Father

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