Translocation

LIFE PROCESSES: Very Short Answer Type Question for Class 10th Chapter 10 JKBOSE/NCERT

Name the cartilaginous flap which closes the glottis to check the entry of food into it during swallowing
Ans: The cartilaginous flap that closes the glottis to prevent the entry of food during swallowing is called the epiglottis. The epiglottis covers the opening of the windpipe (trachea) to ensure that food goes down the esophagus and into the stomach, rather than entering the respiratory system.

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Mutation: Definition, Types, Effects, and Examples

Leave a Comment / Botany, Genetics / Tanveer92

Aneuploidy: It is characterized by the loss or gain of a chromosomal set. It’s a situation in which one or a few chromosomes are added or removed from the usual amount of chromosomes. As a result, the number of chromosomes in aneuploidy can differ from the number of chromosomes in the wild type.
Nullisomy, monosomy, and trisomy are three different kinds of aneuploidy.
1. Nullisomy (2n-2) is the lack of both homologous pair chromosomes. Most creatures may die as a result of these conditions.
2. Monosomy (2n-1) is the loss of one of the homologous pair’s chromosomes.
3. Trisomy refers to the addition of a second chromosome (2n+1). Trisomy includes conditions such as Klinefelter syndrome (44+XXY/XYY) and Down syndrome.

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