The Thread-Like Structures That Contain Genes Are Called:. Chromatin condenses to form chromosomes. The thread like structures which contain instructions for determination of sex of the baby are:
The threadlike structures that contain genes are called: This form of rna is known as messenger (m)rna. 1.the threadlike structures that contain genes are called chromosomes.chromosomes are made up of protein and a single molecule of dna.in humans,each cell contains 23 pairs of.