unit 5

PCR

Polymerase Chain Reaction is a technique used to amplify a specific DNA sequence.

Taq polymerase

A heat-stable DNA polymerase enzyme used in PCR.

dNTPs

Deoxynucleotide triphosphates are the building blocks of DNA used in PCR.

Primers

Short DNA sequences that bind to the target DNA and initiate DNA synthesis in PCR.

Temperature in PCR

Temperature is used to control the different stages of PCR, including denaturation, annealing, and extension.

DNA replication in cells vs PCR

DNA replication in cells occurs during cell division and involves multiple enzymes, while PCR is a laboratory technique that amplifies a specific DNA sequence.

qPCR

Quantitative PCR is a technique used to measure the amount of DNA present in a sample. Degenerate PCR is a technique used to amplify a mixture of related DNA sequences.

PCR products

The amplified DNA fragments produced by PCR. Yes, a gel can be used to analyze PCR products.

Applications of PCR

PCR is used in various fields such as genetic research, forensics, medical diagnostics, and biotechnology.

Plant transformation steps

The main steps of plant transformation include tissue culture, genetic modification, and regeneration of transformed plants.

Agrobacterium tumefaciens

A bacterium commonly used as a vector in plant transformation due to its ability to transfer DNA into plant cells.

Ti plasmid

A plasmid found in Agrobacterium tumefaciens that can be engineered to carry foreign DNA into plant cells during transformation.

Bt gene

A gene derived from the bacterium Bacillus thuringiensis, which produces proteins toxic to certain insect pests. It is used in genetically modified crops for pest resistance.

Monocot vs dicot plants

Monocots and dicots are two major groups of flowering plants, characterized by differences in seed structure, leaf venation, and flower parts.

Seed structure

The structure of a seed includes the embryo, endosperm, and seed coat, which protect and nourish the developing plant.

Transgenic animal creation

Transgenic animals are created by introducing foreign DNA into the genome of an animal using techniques such as pronuclear microinjection or gene targeting.

Biotechnology in veterinary medicine

Biotechnology is used in veterinary medicine for various purposes, including disease diagnosis, vaccine development, and genetic improvement of livestock.

Reproductive technologies in livestock agriculture

Reproductive technologies such as artificial insemination, embryo transfer, and cloning are used to improve breeding efficiency and genetic traits in livestock.

Artificial insemination

Widely used in agriculture, artificial insemination involves the introduction of sperm into the reproductive tract of a female animal to achieve pregnancy.

Sperm and embryo sexing

Sperm and embryo sexing techniques are used to determine the sex of the reproductive cells or embryos, allowing for selective breeding or genetic studies.

Flow cytometry in sperm sexing

Flow cytometry is a technique used to sort and separate sperm cells based on their DNA content, allowing for the selection of desired sexed sperm.

Multiple embryo transfer

The transfer of multiple embryos into a recipient female to increase the chances of successful pregnancy and offspring production.

Animal cloning

Cloning of animals involves the production of genetically identical individuals by somatic cell nuclear transfer or other cloning techniques. It is used for various purposes in agriculture, such as preserving valuable genetic traits.

Marker-assisted selection

A breeding technique that uses molecular markers to select individuals with desired traits. Markers are specific DNA sequences associated with the trait of interest.