Bio
HIND II was discovered by Smith, Wilcox and kelley = 5′ GT (pyrimidine: T or C)/Purine (A or G) AC 3′
How do we make recombinant dna:
1. cut two different DNA molecules w/ same restriction enzyme
2. Mix DNA pieces together = sticky ends- weak hydrogen binding
3. seal with ligase
Plasmids= double stranded DNA and where the DNA fragments are inserted.
Electrophoresis is using a current to separate charged molecules based on the amount of charge
in the molecule
○ Molecules move through a matrix that Read More
biologia tema 3
DNA. Chemical composition: deoxyribonucleotides – phosphate, deoxyribose and nitrogenous bases A-T G-C. Molecular structure: double-stranded structure. Types: Nuclear DNA that forms chromatin, Mitochondrial DNA found in mitochondria and Plastid DNA found in cloroplasts. Cell location: In the nucleus, mitochondria and clororplasts. Function: Contains the organism’s genetic information. RNA. Chemical composition: ribonucleotides – phosphate, ribose, nitrogenous bases A-U G-C. Molecular structure:
Read Moreair masses
AIR CIRCULATION:
- Warm air expands (density decreases) and rises up leaving an area of low pressure.
- When air goes up through upper layers of the atmosphere cools down (se enfria).
- Cold air contracts going down into the atmosphere, generating a high-pressure area.
- From high pressure area, air flows near Earth’s surface to low pressures, warming up.
- The circuit which air flows continuously: convective cell.
- If Earth were motionless, air circulation would follow convective cells that would extend
biologia
1.Ecosystems and environmental factors.Ecosystem:is a system formed by a group of organisms of different species(or biocenosis),the environment in which they live and its physical/chemical characteristics(or biotope) and the interactions.Types of environmental factors.Abiotic factor:are the physical/chemical components of an ecosystem(temperature,light,water).Biotic factors:interactions produced in the biocenosis(wolves when they hunt as a pack).Tolerance ranges and limiting factors:an environmental
Bio
Biology
SALES AND MARKETING FUNCTIONS: includes all activities necessary to bring consumers the goods or services produced by the company, thus satisfying their needs and trying to achieve the best results. (a product is sold if there is a good marketing policy that publicizes and makes it desirable.Duties of the sales and marketing department: planning and control, market research, product promotion and advertising, sales.THE MARKET: is defined as a set of purchasing and sales activities of a product