What is Adaptive Landscape and how to study it?
What is adaptive Landscape? An adaptive landscape is a surface in multidimensional space (analogous to a mountain range) that represents the mean fitness of a …
Genetic
What Is Acrosome Its Reaction And Function?
What is acrosome? The acrosome is an organelle that develops over the front half of the head in the spermatozoa (sperm) of many animals, including …
What is Achondroplasia its causes and symptom?
What is Achondroplasia? Achondroplasia is a rare genetic disorder of bone growth that prevents cartilage (especially in the long bones of arms and legs) from …
What is Abortive Transduction?
Abortive transduction is the process of introducing a linear fragment of DNA from one bacterial cell into another using a bacteriophage vector. The size of the …
Telomerase: Definition, Structure, and Function
Telomerase Definition Telomerase is an enzyme found inside our cells, which may be related to the aging process. It adds short, repetitive “caps” to our …
Substitution Mutation: Definition, Types, Causes & Example
Substitution Mutation Definition A substitution mutation is a type of replication error during DNA replication which places the wrong nucleotide or sequence of nucleotides in the wrong position. A type of …
Sister Chromatids: Definition, Structure, and Function
Sister Chromatids Definition Sister chromatids are two identical copies of the same chromosome formed by DNA replication, attached to each other by a structure called the centromere. During cell division, …
Silent Mutation: Definition and Example
Silent Mutation Definition A silent mutation is a change in the sequence of nucleotide bases which constitutes DNA, without a subsequent change in the amino acid or the function …
Sex-Linked Gene: Definition, Overview, and Example
Sex Linked Genes Definition Sex linked genes are genes that are in the sex chromosomes and that are therefore inherited differently between males and females. In mammals, where the …
Sex Chromosomes: Definition and Types
Sex Chromosomes Definition Sex chromosomes are chromosomes that determine whether the individual is male or female. Though these two chromosomes pair with each other during meiosis, …