BIOLOGY 101 COURSE SYLLABUS FOR FALL 2012 Course Description Biology 101 is the first of a two-semester introductory course sequence designed primarily for science majors. It covers some central concepts in biology. Topics include molecules‚ cells‚ enzymes‚ photosynthesis‚ cellular respiration‚ cellular reproduction‚ genetics‚ and biotechnology. The laboratory includes basic laboratory skills such as safety‚ microscope use‚ and measurement‚ and it reinforces topics discussed in lecture
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either parent are placed into gametes during meiosis in the F generation. The F can be thought of as having been formed 1 1 from two haploid “input” gametes. In this case‚ the F is a dihybrid with AB on one chromosome and ab on the other 1 chromosome. You can tell this by looking at the parents. The F1 hybrid got AB from one parent and ab from the other parent (AB/ab). A dihybrid that is AB/ab can produce four possible “output” gametes through meiosis. Output gametes that match one of the input gametes
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|α cells |Cells in the islets of Langerhans that release glucagon in response to low blood glucose levels. | |Acetylcholine |A neurotransmitter (transmitter substance) found in cholinergic synapses. | |Acetylcholinesterase |An enzyme in the synaptic cleft that breaks down the transmitter substance acetylcholine. | |Actin |A protein
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Blueprint Of Life 1. Evidence of evolution suggests that the mechanisms of inheritance‚ accompanied by selection‚ allow change over many generations * Outline the impact on the evolution of plants and animals of: - Changes in physical conditions in the environment - Changes in chemical conditions in the environment - Competition for resources Physical Conditions | Chemical Conditions | Competition for resources | Change in physical conditions such as:- Temperature- Wind conditions-
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germination. Life for an animal begins when exiting the mother’s womb or from an egg. In both cases‚ birth is experienced; however‚ with plants the process is called mitosis and with animals it is called meiosis. In plants gametes are not produced directly‚ they have an extra step in which meiosis produces spores. Plants and animals are becoming known more and more for their vital human usage in many areas‚ such as
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Why offspring produced by the same parents are different in appearance Offspring differ somewhat from their parents and from one another. Instructions for development are passed from parents to offspring in thousands of discrete genes‚ each of which is now known to be a segment of a molecule of DNA. This essay will explore some of the reasons behind how and why these differences in appearance arise‚ from the base sequence of DNA through to the observed phenotype. Genes come in different varieties
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A flower‚ sometimes known as a bloom or blossom‚ is the reproductive structure found in flowering plants (plants of the division Magnoliophyta‚ also called angiosperms). The biological function of a flower is to effect reproduction‚ usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) or allow selfing (fusion of sperm and egg from the same flower). Some flowers produce diaspores
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BIO- FINAL EXAM REVEW SHEET This is a comprehensive review of material from exams 1-3. Please study your class notes/powerpoint slides and read the chapters listed in your syllabus to study for all new material. What are the characteristics of living organisms? Acquire and use energy Made up of other cells Process information Can replicate itself (can reproduce) Population evolves (they evolve) What are the characteristics of cells? Contain genetic information Can duplicate themselves
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into gene products. 2). Explain how nondisjunction may be related to Down syndrome. Describe four syndromes that result from inheritance of an abnormal sex chromosome number. During meiosis chromosomes are separated equally but if they are not separated equally this is known as non-disjunction in males meiosis I accounts for 80% of cases this is where gametes end up with either an extra chromatid or no chromatid. With Down syndrome the offspring carries an extra chromatid in Chromosome 21 which
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Unit 3 Lecture Study Guide 1. List the 4 primary tissue types and give the general characteristics and functions of each one. Epithelium- The epithelium protects us from the outside world. Skin‚ absorbs. Stomach and intestinal lining‚ filters. The kidney‚ secretes. Forming of glands‚ closely attached to each other forming a protective barrier‚ always has one free surface open to outside the body or inside an internal organ‚ has no blood vessels but can soak up nutrients from blood vessels in connective
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