The number of linkage groups in a cell having $10$ pairs of chromosomes is.....

Based on which of the following did Morgan observe characteristics similar to Mendel's analysis experiments in the fruit fly Drosophila?

When two genes are situated very close to each other on a chromosome:

How many linkage groups are present in bacteria?

In diploid organisms,crossing over is responsible for which of the following?

In a somatic cell,if the arrangement of genes is such that dominant alleles are present on one chromosome and recessive alleles are present on the other chromosome of a homologous pair,what is this arrangement called?