Question
What structures exchange genetic material during crossing over?
Non-sister chromatids
Non-homologous chromosomes
Sister chromatids
Egg and the sperm
Non-sister chromatids
Non-homologous chromosomes
Sister chromatids
Egg and the sperm
Hint:
The chromosomes which have different alleles but the same genes exchange genetic material.
The correct answer is: Non-sister chromatids
- Recombination is the exchange of genetic material between homologous chromosomes. Homologous chromosomes come together to form tetrads.
- This close contact allows the non-sister chromatids of homologous chromosomes to bind to each other and exchange nucleotide sequences.
- Each chromosome has a homologous pair, one from the mother (maternal) and one from the father (paternal).
- These homologous pairs contain the same gene but may contain different alleles and are not exact copies of each other and are called non-sisters. chromatids.
Related Questions to study
What is the evolutionary purpose of cells that undergo crossing over?
What is the evolutionary purpose of cells that undergo crossing over?
When does chromosomal crossover occur?
When does chromosomal crossover occur?
Chromosomal crossover is the natural pairing up and exchanging of genetic material between
Chromosomal crossover is the natural pairing up and exchanging of genetic material between
Which of the following does not cause variation?
Which of the following does not cause variation?
What is the structural and functional unit of heredity?
What is the structural and functional unit of heredity?
When does crossing over occur in meiosis?
When does crossing over occur in meiosis?
__________is the degree to which differences are seen in parents and their off springs.
__________is the degree to which differences are seen in parents and their off springs.
DNA is present in _________ of a cell.
DNA is present in _________ of a cell.
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.
