Question
DNA is present in _________ of a cell.
Nucleus
Cytoplasm
Mitochondria
ER
Nucleus
Cytoplasm
Mitochondria
ER
Hint:
Mitochondria is a membrane-bound organelle present in the center of the cell.
The correct answer is: Nucleus
- DNA or deoxyribonucleic acid is the genetic material of humans and almost all other organisms.
- Almost all cells in the human body have the same DNA. Most of the DNA is present in the nucleus (where it is called nuclear DNA), but a small amount is also present in the mitochondria (called mitochondrial DNA or mtDNA).
- Mitochondria are structures within cells that convert energy from food into a form that the cell can use.
Related Questions to study
In sickle cell anemia amino acid______ is formed as a result of point substitution.
In sickle cell anemia amino acid______ is formed as a result of point substitution.
The following image shows the mechanism of _______ mutation.
The following image shows the mechanism of _______ mutation.
_____________ mutation causes sickle cell anemia.
_____________ mutation causes sickle cell anemia.
The picture shows which type of chromosomal mutation?
The picture shows which type of chromosomal mutation?
Down’s syndrome is an example of:
Down’s syndrome is an example of:
______ mutations originate during meiosis while ______ mutation originates during mitosis.
______ mutations originate during meiosis while ______ mutation originates during mitosis.
Which of the following is not an effect of a mutation?
mutation occurs at genetic level/ nucleotide level or DNA level but its effect when polypetide is formed.
the change in nucleotide sequence causes change in genetic codes(amino acid sequence) which formed wrong polypeptide.
so the after the mutation the protein is formed and mutation is nothing is related with the amount of protein.
Which of the following is not an effect of a mutation?
mutation occurs at genetic level/ nucleotide level or DNA level but its effect when polypetide is formed.
the change in nucleotide sequence causes change in genetic codes(amino acid sequence) which formed wrong polypeptide.
so the after the mutation the protein is formed and mutation is nothing is related with the amount of protein.
To cause a frame shift type of mutation, ______ must occur.
A frameshift variant occurs when there is an addition or loss of nucleotides that shifts the grouping and changes the code for all downstream amino acids. The resulting protein is usually nonfunctional. Insertions, deletions, and duplications can all be frameshift variants.
A frameshift mutation in a gene refers to the insertion or deletion of nucleotide bases in numbers that are not multiples of three. This is important because a cell reads a gene’s code in groups of three bases when making a protein. Each of these “triplet codons” corresponds to one of 20 different amino acids used to build a protein. If a mutation disrupts this normal reading frame, then the entire gene sequence following the mutation will be incorrectly read. This can result in the addition of the wrong amino acids to the protein and/or the creation of a codon that stops the protein from growing longer.
To cause a frame shift type of mutation, ______ must occur.
A frameshift variant occurs when there is an addition or loss of nucleotides that shifts the grouping and changes the code for all downstream amino acids. The resulting protein is usually nonfunctional. Insertions, deletions, and duplications can all be frameshift variants.
A frameshift mutation in a gene refers to the insertion or deletion of nucleotide bases in numbers that are not multiples of three. This is important because a cell reads a gene’s code in groups of three bases when making a protein. Each of these “triplet codons” corresponds to one of 20 different amino acids used to build a protein. If a mutation disrupts this normal reading frame, then the entire gene sequence following the mutation will be incorrectly read. This can result in the addition of the wrong amino acids to the protein and/or the creation of a codon that stops the protein from growing longer.
_______ is known as the process of repetitive replication of a chromosome segment.
gene amplification is also called gene duplication in which the number of nucleotides are added on the gene sequence due to which the number of chromosomes are changed from 23 to N+1.
¶ Gene duplications can arise as products of several types of errors in DNA replication and repair machinery as well as through fortuitous capture by selfish genetic elements. Common sources of gene duplications include ectopic recombination, retrotransposition event,aneuploidy,polyploidy, and replication slippage.
¶Duplication results from an unequal crossing-over between misaligned homologous chromosomes during meiosis. It may involve a replication of a portion of DNA, or of an entire chromosome.
_______ is known as the process of repetitive replication of a chromosome segment.
gene amplification is also called gene duplication in which the number of nucleotides are added on the gene sequence due to which the number of chromosomes are changed from 23 to N+1.
¶ Gene duplications can arise as products of several types of errors in DNA replication and repair machinery as well as through fortuitous capture by selfish genetic elements. Common sources of gene duplications include ectopic recombination, retrotransposition event,aneuploidy,polyploidy, and replication slippage.
¶Duplication results from an unequal crossing-over between misaligned homologous chromosomes during meiosis. It may involve a replication of a portion of DNA, or of an entire chromosome.
Damages and errors in the DNA can cause___________
A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.
DNA repair, any of several mechanisms by which a cell maintains the integrity of its genetic code. DNA repair ensures the survival of a species by enabling parental DNA to be inherited as faithfully as possible by offspring. It also preserves the health of an individual.
DNA translation is the term used to describe the process of protein synthesis by ribosomes in the cytoplasm or endoplasmic reticulum. The genetic information in DNA is used as a basis to create messenger RNA (mRNA) by transcription.
Transcription, as related to genomics, is the process of making an RNA copy of a gene's DNA sequence. This copy, called messenger RNA (mRNA), carries the gene's protein information encoded in DNA.
Damages and errors in the DNA can cause___________
A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.
DNA repair, any of several mechanisms by which a cell maintains the integrity of its genetic code. DNA repair ensures the survival of a species by enabling parental DNA to be inherited as faithfully as possible by offspring. It also preserves the health of an individual.
DNA translation is the term used to describe the process of protein synthesis by ribosomes in the cytoplasm or endoplasmic reticulum. The genetic information in DNA is used as a basis to create messenger RNA (mRNA) by transcription.
Transcription, as related to genomics, is the process of making an RNA copy of a gene's DNA sequence. This copy, called messenger RNA (mRNA), carries the gene's protein information encoded in DNA.
Most common autosomal trisomy at birth is ________.
Most common autosomal trisomy at birth is ________.
When one or more pieces of chromosome doubles and reunites at wrong sites it is called:
When one or more pieces of chromosome doubles and reunites at wrong sites it is called:
Mutations among members of a species arise due to:
Mutations among members of a species arise due to:
"In chromosomal mutation the change involves in a particular part of chromosome so that a number of genes are also affected ". Whether this is:
Evolution is the process by which large populations of species change over generations.
Genetic variations govern these changes. Genetic variations can arise from gene mutations or from genetic recombination (a normal process during which genetic material is rearranged when a cell is preparing to divide).
These variations often alter gene activity, or protein function, which may introduce different traits in an organism.
If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to subsequent generations thus playing a role in evolution.
Additional information: The two important types of mutations are gene mutations, which can either be point mutations (happening in a single nucleotide) or
frameshift mutations (when a nucleotide or nucleotides are inserted/ deleted), and chromosomal mutations, which causes changes in the structure/ number of the entire chromosome
"In chromosomal mutation the change involves in a particular part of chromosome so that a number of genes are also affected ". Whether this is:
Evolution is the process by which large populations of species change over generations.
Genetic variations govern these changes. Genetic variations can arise from gene mutations or from genetic recombination (a normal process during which genetic material is rearranged when a cell is preparing to divide).
These variations often alter gene activity, or protein function, which may introduce different traits in an organism.
If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to subsequent generations thus playing a role in evolution.
Additional information: The two important types of mutations are gene mutations, which can either be point mutations (happening in a single nucleotide) or
frameshift mutations (when a nucleotide or nucleotides are inserted/ deleted), and chromosomal mutations, which causes changes in the structure/ number of the entire chromosome
Concept of a sudden genetic change that breeds true in an organism is visualized as:
The concept of sudden genetic change, which breeds true in an organism is visualized as a mutation. Any sudden or spontaneous change in character which is inheritable is known as mutation. It is defined as the changing of the structure of a gene, resulting in a variant form which may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.
Concept of a sudden genetic change that breeds true in an organism is visualized as: