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Human Baby will be a female if its 23rd chromosome pair is

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Important Questions on Reaching the Age of Adolescence

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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
What is the length of human DNA containing 6.6×109 bp ?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
A couple has two sons and two daughters. Only one son is colour blind and the rest of the siblings are normal. Assuming colour blindness is sex-linked, which ONE of the following would be the phenotype of the parents?
MEDIUM
Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
A breeder crossed a pure breed tall plant having white flowers to a pure breed short plant having blue flowers. He obtained 202 F1 progeny and found that they are all tall having white flowers. Upon selfing these F1 plants, he obtained a progeny of 2160 plants. Approximately, how many of these are likely to be short and having blue flowers?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
According to Mendel, ........................ segregate and ..................... assort independently.
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
An mRNA is transcribed from a DNA segment having the base sequence 3'-TACATGGGTCCG-5'. What will be the correct order of binding of the four amino acyl-t RNA complexes given below during translation of this mRNA?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
What is the number of chromosomes in an individual with Turner's syndrome?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
In an In-vitro translation experiment, poly (UC) RNA template produced poly (Ser-Leu), while poly (AG) RNA template produced poly (Arg-Glu) polypeptide. Which ONE of the following options represents correct interpretations of the codons assignments for Ser, Leu, Arg and Glu?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
In Griffith's experiments mice died when injected with
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
People suffering from albinism cannot synthesize:
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
Children suffering from phenylketonuria are given food low in phenylalanine and supplemented with tyrosine. This is because they
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
A diploid plant has 14 chromosomes, but its egg cell has 6 chromosomes. Which one of the following is the most likely explanation of this?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
In the presence of glucose and lactose, Escherichia coli utilizes glucose. However, lactose also enters the cells because?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
Which one of the following is the complementary sequence for the DNA with 5′-CGTACTA-3′
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
In Escherichia coli, how many codons codes for the standard amino-acids?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
A new life form discovered on a distant planet has a genetic code consisting of five unique nucleotides and only one stop codon. If each codon has four bases, what is the maximum number of unique amino acids this life form can use?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
Some of F2 progeny are formed during dihybrid cross between round and yellow o↑ and wrinkled and green +∘ pea plants. Their genotypes are:
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans

Human height is a multigenic character. If the heights of all the individuals living in a metropolis are measured and the percentages of the population belonging to a specific heat are plotted as shown below, which of the plots would represent the most realistic distribution?
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MEDIUM
Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans

A woman heterozygous for colour blindness marries a colour-blind man. What would be the ratios of carrier daughters, colour-blind daughters, normal sons, and colour-blind sons in the F1 generation?

EASY
Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans
Which of the following statements about nucleosome is true?
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Science>Biology>Reaching the Age of Adolescence>Sex Determination in Humans

Flow chart of sex determination in humans is given below. Information to be filled in the blanks a, b and c respectively are :

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