After salivary gland cells from Drosophila are isolated and cultured in the presence of radioactive thymidylic acid, autoradiography is performed, revealing polytene chromosomes. Predict the distribution of the grains along the chromosomes.
After salivary gland cells from Drosophila are
isolated and cultured in the presence of radioactive
thymidylic acid, autoradiography is performed,
revealing polytene chromosomes. Predict the distribution
of the grains along the chromosomes.
Human chromosomes are mainly of two types the autosomes and the allosomes or sex chromosomes. Based on the number of centromeres, the chromosomes can be divided as monocentric, dicentric, polycentric, acentric, and or diffused. Based on the location of the centromere, they are telocentric, acrocentric, metacentric, and also submetacentric.
There are three main special chromosomal types found in living organisms. They are polytene chromosomes, lampbrush chromosomes, and prokaryotic nucleoids.
Step by step
Solved in 2 steps
