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A sequential expression of a set of huma...

A sequential expression of a set of human genes occurs when a steroid molecule binds to the

A

Ribosome

B

Transfer RNA

C

Messenger RNA

D

DNA sequence

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The correct Answer is:
D
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Diffusion occurs when molecules move :

Diagrammatically represent the experimental steps in cloning and expressing a human gene (say the gene for growth hormone) into a bacterium like E. coli?

Assertion :- The development & differentiation of embryo into adult organism are the result of coordinated regulation of expression of several sets or genes. Reason : The expression of all genes are not required simultaneously during development of organism.

Expression of recessive genes on X- chromosome occurs in males genes on

A gene has two alleles B and b. B is responsible for the expression of character x . b. is responsible for the expression of character y. B. is completely dominant over b. Another gene A is epistatic on gene B. When A is in the dominant condition it suppress the expression of B and b and gives rise to character z.In recessive condition (allele a) allows expression of B and b. When an organism with genotype AaBb is crossed with another organism with genotype AaBb, the ratio of characters x,y and z seen in its offsprings is

The regulation of gene expression in eukaryotes occurs at /or include

Assertion : Phenotypic superiority of hybrid over either of its parents in one or more traits is termed hybrid vigour. Reason : Suppression of expression of recessive harmful genes occurs in heterozygotes.

Select the correct options to fill up the blanks. (i) _____ enzyme is crucial for the immune system to function and its absence is caused by the deletion of a gene (ii) Insulin consists of _____ and _____ that are linked together by _____ (iii) Transgenic mice are being used to test the safety of the ____ (iv) _____ involves silencing of a specific mRNA due to a complementary dsRNA molecule that binds to and prevents translation of the mRNA

In prokaryotes, regulation of gene expression occurs at the

Assertion :- It is the metabolic, physiological or environmental conditions that regulate the expression of genes. Reason : The genes in a cell are expressed to perform a particular function or a set of functions.

AAKASH INSTITUTE ENGLISH-MOLECULAR BASIS OF INHERITANCE -ASSIGNMENT (SECTION -C) Previous Years Questions
  1. Which one of the following pairs of codons is correctly matched with t...

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  2. One gene-one enzyme relationship was established for the first time in

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  3. A sequential expression of a set of human genes occurs when a steroid ...

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  4. The Okazaki fragments in DNA chain growth

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  5. Molecular basis of organ differentiation depends on the modulation in ...

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  6. Telomere repetitive DNA sequences control the function of eukaryote ch...

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  7. During transcription, RNA polymerase holoenzyme binds to a gene promot...

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  8. The two polynucleotide chains in DNA are

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  9. The length of DNA molecule greatly exceeds the dimensions of the nucle...

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  10. One turn of the helix in a beta-form of DNA is approximately

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  11. Antiparallel strands of a DNA molecule means that

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  12. Amino acid sequence , in protein synthesis is decided by the sequence ...

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  13. One-gene-one enzyme hypothesis was proposed by :-

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  14. During transcription, RNA polymerase holoenzyme binds to a gene promot...

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  15. E. coli cells with a mutated z gene of the lac operon cannot grow in m...

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  16. Nucleotides are building blocks of nucleic acids. Each nucleotide is a...

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  17. Which one of the following makes use of RNA as a template to synthesi...

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  18. Uridine, present only in RNA is

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  19. Which of the following is not a property of the genetic code ?

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  20. One of the most frequently used techniques in DNA fingerprinting i...

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