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The preparation of a final accounting is the last stage of the accounting cycle. It determines the financial position of the business. Under this, it is compulsory to make a trading account, the profit and loss account, and balance sheet. The term "final accounts" includes the trading account, the profit and loss account, and the balance sheet.
The history of biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine and the works of Aristotle, Theophrastus and Galen in the ancient Greco-Roman world.
DNA strands have a directionality, and the different ends of a single strand are called the "3′ (three-prime) end" and the "5′ (five-prime) end". By convention, if the base sequence of a single strand of DNA is given, the left end of the sequence is the 5′ end, while the right end of the sequence is the 3′ end.
Genome: The Autobiography of a Species in 23 Chapters is a 1999 popular science book by the science writer Matt Ridley, published by Fourth Estate. The chapters are numbered for the pairs of human chromosomes , one pair being the X and Y sex chromosomes , so the numbering goes up to 22 with Chapter X and Y couched between Chapters 7 and 8.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
While monotremes use an XX/XY system, unlike other mammals, monotremes have more than two sex chromosomes. The male short-beaked echidna, for example, has nine sex chromosomes—5 Xs and 4 Ys, and the male platypus has 5 Xs and 5 Ys. [citation needed] Platypuses are a monotreme species whose mechanism of sex determination has been extensively ...
Human metaphase chromosomes (normal male karyotype). The analysis of metaphase chromosomes is one of the main tools of classical cytogenetics and cancer studies. Chromosomes are condensed (thickened) and highly coiled in metaphase, which makes them most suitable for visual analysis.
Light micrograph of a moss's leaf cells at 400X magnification. The following outline is provided as an overview of and topical guide to cell biology: . Cell biology – A branch of biology that includes study of cells regarding their physiological properties, structure, and function; the organelles they contain; interactions with their environment; and their life cycle, division, and death.