Tag: human genome project

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Multiple choice zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

Choose the wrong statement regarding the observation drawn from Human Genome Project

  1. Repetitive sequences are stretches of RNA

  2. Less than 2% of the genome codes for protein

  3. Chromosome Y has the fewest number of genes

  4. SNPs help in tracing human history

  5. Repetive sequences make up a very large portion of the human genome
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Repetitive sequences are stretches of DNA, not RNA. The other statements regarding the small percentage of protein-coding genes, the low gene count on the Y chromosome, and the utility of SNPs are correct findings from the HGP.

Multiple choice zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

Human genome project was started in

  1. $1989$
  2. $1990$
  3. $1992$
  4. $1995$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The Human Genome Project was started in 1990 with the goal of sequencing and identifying all 3 billion chemical units in the human genetic instruction set, finding the genetic roots of disease and then developing treatments.

So, the correct answer is '1990'.
Multiple choice zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

As per latest information human genome has

  1. $3,00,000$ genes
  2. $20,000$ genes
  3. $3,000$ genes
  4. $300$ genes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
There are an estimated 19,000-20,000 human protein-coding genes. The estimate of the number of human genes has been repeatedly revised down from initial predictions of 100,000 or more as genome sequence quality and gene finding methods have improved and could continue to drop further.
So, the correct answer is '20,000 genes'.
Multiple choice zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

Main aim of human genome project is to

  1. Introduce new genes into human beings.

  2. Identify and sequence all the genes present in human DNA.

  3. Develop better techniques to compare two human DNAs.

  4. Remove disease causing genes from human DNA.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Human genome project was a 13- year long project involving a global, long-term research effort to identify the estimated 30,000 genes in human DNA (deoxyribonucleic acid) and to figure out the sequences of almost 3 billion nucleotides that make up human DNA. It was completed in 2003.

So, the correct option is 'Identify and sequence all the genes present in human DNA.'

Multiple choice zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

The state in which the viral genome gets integrated with the bacterial genome is called.

  1. Prophage

  2. Prophase

  3. Adsorption

  4. Lysogeny
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A prophage is the state where a bacteriophage genome is integrated into the host bacterium's DNA. Lysogeny is the cycle itself, but the integrated DNA is specifically called a prophage.

Multiple choice zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

The human genome contains (a) billion nucleotide bases. The average gene consists of (b) bases. Which option is correct for a & b?

  1. $a = 3, b = 3000$
  2. $a = 5, b = 3000$
  3. $a = 3, b = 2000$
  4. $a = 4, b = 3000$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The human genome contains approximately 3 billion base pairs, and the average gene size is estimated to be around 3000 base pairs.