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Definition of Gene. A short section of DNA, which contains the instructions needed to control the development of a characteristic. Chromosome. A long molecule of DNA found in the nucleus. In most human body cells there are 46 chromosomes. Definition of Allele. An alternative version of a gene. Definition of Diploid.
Chapter 1: The Science of Biology ( Definition) 5.0 (1 review) Science. Click the card to flip 👆. Is an organized way of gathering and analyzing evidence about the natural world. Click the card to flip 👆. 1 / 19.
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Terms in this set (108) Says that all living things are made of cells, that cells are the basic unit of structure and function and that cells only come from other cells. clear gelatinous fluid inside a cell. Study with Quizlet and memorize flashcards containing terms like Cell, Cell theory, Cell wall and more.
an antibiotic (trade name Achromycin) derived from microorganisms of the genus Streptomyces and used broadly to treat infections. binary fission. type of asexual reproduction in which an organism replicates its DNA and divides in half, producing two identical daughter cells. cell-surface proteins.
4. 223. Find Biology flashcards to help you study for your next exam and take them with you on the go! With Quizlet, you can browse through thousands of flashcards created by teachers and students — or make a set of your own!
All of the environments on Earth that support life. An environment that consists of all the organisms living in a particular area, as well as the physcial components with which the organisms interact such as air, soil, water and sunlight. The entire array of organisms in an ecosystem. all the individuals of a particular species living in an area.
RNA. single-stranded nucleic acid that contains the sugar ribose. DNA. genetic material that organisms inherit from their parents. messenger RNA. type of RNA that carries copies of instructions for the assembly of amino acids into proteins from DNA to the rest of the cell. ribosomal RNA. type of RNA that combines with proteins to form ribosomes.
