Multiple choice

Which of the following terminologies is not correctly defined?

  1. Autoantigens: Representation of an individual’s own proteins together with other chemicals, which evidently elicit adequate immune responses.

  2. Alleles: Two or more alternative forms of a gene.

  3. Amniocentesis: pairing of complementary DNA or RNA sequences, via hydrogen bonding to form a double-stranded polynucleotide.

  4. Bt crop: Crops that contain genes for Bt toxin.

  5. Imprinting: Suppression or silencing of genes depending on the parent from which they are received.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Amniocentesis is a procedure in which a small amount of amniotic fluid (the fluid surrounding a baby in the womb) is drawn out using a needle and syringe. Because amniotic fluid contains cells from the baby, it can be used to test for chromosomal and genetic disorders, as well as certain birth defects. The pairing of complementary DNA or RNA sequences, via hydrogen bonding to form a double-stranded polynucleotide is called as anneal.