Heterozygosity index refers to the frequency of heterozygotes in a population for genes. It tells about the degree of polymorphism existing in a... View Article
All humans differ in just 0.1 percent of the genome on an average. 99.9 percent of nucleotides are the same in the DNA of all the people.... View Article
Evolution occurs with the change in gene frequencies of a population. The main forces of evolution are gene flow, genetic drift, mutation,... View Article
No, each chromosome has different genes. Each chromosome contains a specific portion of the genome. Further reading: Polygenic Inheritance... View Article
The two types of variations are somatic and germline. Somatic variations are the modifications in somatic cells, which are acquired due to... View Article
All the cells contain DNA, mostly in their nucleus (eukaryotic cells). Some of the DNA is also present in the mitochondria. Prokaryotic cells... View Article
Survival of the fittest means that organisms which are better adapted to their environment are best suited to survive and successfully reproduce.... View Article
Genetic drift is more pronounced in small populations due to lesser variations and lesser ability to adapt to changing environments. Further... View Article
No, RNA is a type of nucleic acid. RNA refers to ribonucleic acid. It is a polynucleotide and is involved in protein synthesis. Further... View Article
Girls inherit one haploid set of chromosomes from father including an X chromosome. Boys inherit the Y chromosome and 22 autosomes from their... View Article
There are three stop codons for protein synthesis, they are UAA, UAG and UGA. Further reading: Polygenic Inheritance Chromosome Structure... View Article
Variation refers to the difference between cells, organisms or various species. Variations among individuals of the same species exist due to... View Article
CAU is the genetic code for the histidine amino acid at the time of protein synthesis. Further reading: Polygenic Inheritance Chromosome... View Article
No, uracil is not present in DNA. Uracil is a pyrimidine base present in RNA in place of thymine, which is present in DNA. Further reading:... View Article
A, T, C and G are the acronym for four nitrogenous bases present in DNA. They are: A - Adenine T - Thymine G - Guanine C - Cytosine The A... View Article
Genetic variation or genetic diversity decreases by inbreeding, genetic drift, restricted gene flow and having small isolated populations.... View Article
Genetic equilibrium refers to the state, where allele frequencies in a population remain constant from generation to generation in absence of... View Article
The five main causes of evolution are gene flow, genetic drift, mutation, natural selection and recombination. Further reading: Adaptive... View Article
