Q. 74.9( 15 Votes )
Give the basic features of the mechanism of inheritance.
Answer :
Transmission of genetic characteristic from one generation to next is termed as inheritance. The basic features of the mechanism of inheritance are-
•Each genetic character is controlled by a gene.
•Genes are units of hereditary and are responsible for inheritance. Genes controls the expression of a trait or a character in an organism. Genes are located on the chromosomes inside the nucleus of the cell.
•Each gene has two or more alternating forms called as alleles. One of the allele is dominant while other is recessive.
•Each parent possesses a pair of genes for each characteristic on a chromosome.
•Each cell has two copies of each chromosome, one each from the male and female parents.
•Every germ-cell will take one chromosome from each pair and these may be of either
• maternal or paternal origin.
• When two germ cells combine, they will restore the normal number of chromosomes in the progeny, ensuring the stability of the DNA of the species
Rate this question :






















Which statement is true for a dominant allele?
All In One ScienceA recessive homozygote is crossed with a heterozygote of the same gene. What will be the phenotype of the F 1 -generation?
All In One ScienceWhat determines the sex of a child?
All In One ScienceThe genotype of the height of an organism is written as Tt. What conclusion may be drawn?
All In One ScienceWhich statement about the genotypes of organisms is correct?
All In One ScienceIn the second generation, the dwarf trait reappears during Mendel’s experiment in monohybrid cross. Why so?
All In One Science