Homologous chromosomes are chromosome pairs, one from each parent, that are similar in length, gene position and centromere location. … Homologous chromosomes are similar but not identical. Each carries the same genes in the same order, but the alleles for each trait may not be the same.
What is meant by the term homologous chromosomes?
two chromosomes, one of paternal origin, the other of maternal origin, that are identical in appearance and pair during meiosis.
What is homologous chromosome Class 10?
Homologous chromosomes are defined as two pieces of DNA within an organism who is a diploid (2n) which carry the same genes one from each parent i.e. one from a father and one from the mother. This suggests that both parents contribute to the complete genome of an organism.
What do you mean by homologous chromosomes Shaalaa?
Solution. Homologous chromosomes are chromosome pairs that are similar in length, gene position and centromere location.
What makes homologous chromosomes homologous?
The two chromosomes in a homologous pair are very similar to one another and have the same size and shape. Most importantly, they carry the same type of genetic information: that is, they have the same genes in the same locations. However, they don’t necessarily have the same versions of genes.
What is homologous chromosomes in meiosis?
Homologous chromosomes are matched pairs containing the same genes in identical locations along their length. Diploid organisms inherit one copy of each homologous chromosome from each parent; all together, they are considered a full set of chromosomes.
Which of the following best describes a homologous chromosome?
Which of the following statements best describes homologous chromosomes? Chromosomes that have the same genes in the same position and are the same size and shape.
What is homologous chromosome Class 9?
Homologous chromosomes are chromosome pairs (one from each parent) that are similar in length, gene position, and centromere location.
What is homologous chromosome Class 12?
Hint:Homologous chromosomes are pairs of chromosomes that have the same structure including centromere position and staining, and length, and have alleles for the same genes at the same loci on each chromosome. …
What is homologous chromosome Class 11?
Homologous chromosomes – Homologous chromosomes are defined as a set or pair or chromosome which offspring received and got from its parent one from the maternal parents and one from the paternal parent.
What are Holandric genes Class 12?
The genes that are carried on the Y chromosome are called holandric genes. Holandric genes can only be passed by males onto their sons; they code for ‘maleness’ but sometimes cause rare conditions like hypertrichosis pinnae and color blindness.
What is translocation chromosomal mutation?
Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome. Chromosomal translocations can be detected by analyzing karyotypes of the affected cells.
What is the crossing over Shaalaa?
Crossing-over: The phenomenon of the exchange of genetic material between two non¬sister chromatids.