Biomolecules - Organic compounds is first due to the fact that every word on the list is an organic compound‚ as they are essential to life processes. Next‚ carbohydrates‚ lipids‚ proteins‚ and nucleic acids are all macromolecules‚ as they are very large molecules composed of thousands of atoms or more. The map then divides into the four biomolecules. Carbohydrates are composed of monosaccharides‚ disaccharides‚ and polysaccharides. Proteins are made of amino acids‚ which are themselves made of polypeptides
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is a diverse and interesting place to explore the differences and possibilities between all living things. Through reproduction‚ genes are passed along the family tree‚ and the species lives through another generation. Diversity exists because in meiosis there are possibilities of recombination of chromosomes and independent assortment. Randomness occurs when chromosomes line up on the metaphase plate and crossing over of tetrads occurs (McGraw-Hill). When chromosomes experience crossing over‚ many
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AP Biology Essay Questions UNIT 1 1. The unique properties (characteristics) of water make life possible on Earth. Select three properties of water and: a. for each property‚ identify and define the property and explain it in terms of the physical/chemical nature of water. b. for each property‚ describe one example of how the property affects the functioning of living organisms. UNIT 2 Describe the chemical composition and configuration of enzymes and discuss the factors that
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used to discover inheritance patterns in mutant flies. Mendel’s Laws and Probability Mendel used rules of probability such as the rule of multiplication to calculate the chance of inheriting particular alleles. Mendel’s Laws and Meiosis Today’s knowledge of meiosis supports Mendel’s laws of inheritance. The laws revolve around the idea that the homologous chromosomes segregate‚ each gamete receiving one set‚ and that the segregation of one pair is independent of others. 10.2 Beyond Mendel’s
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Meiosis is a type of cell which produces male and female gametes in plants and animals. A ‘cell’ contains 46 chromosomes arranged in 23 pairs. However‚ gametes are sperm or eggs‚ and only contain half as many chromosomes. Process by which new cells are
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described as instruction manuals. Genes are made up of DNA‚ which carries the instructions to make and operate parts of our bodies. (learn.genetics.utah.edu‚ 2004) Genes are passed from parent to offspring through a type of cell division called meiosis. Meiosis is used in the production of sex cells. (Gametes) The Female gamete is the ova and the male gamete is the sperm. “This process results in the chromosome number being halved‚ so instead of pairs of chromosomes in each resulting cell‚ there is
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Name ______________________________________ Virtual Lab Report: Part I Due by: 11:59 PM PST on the second Saturday of class Virtual Lab 1: Virtual Microscopy A. Estimate the size (length and width) of these microscopic objects in micrometers (microns): 1. An E. Coli cell. 3 x 0.6 um =1.8 um 2 A mitochondrion. 4 x 0.8 um = 3.2 um 3. A Red blood cell. 8 um 4. A virus. _Hepatitis 45 nm = .045 um 5. A water molecule. 275 pm =.275 um B. 1 Describe three differences between prokaryotic and eukaryotic
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Genetics Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Pea plants were particularly well suited for use in Mendel’s breeding experiments for all of the following reasons except that a.|peas show easily observed variations in a number of characters‚ such as pea shape and flower color.| b.|it is possible to control matings between different pea plants.| c.|it is possible to obtain large numbers of progeny from any given
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1. Identification of Some Macromolecules 1) What are 2 types of treatment controls‚ and explain each. Positive control: gives positive result if experimental conditions were followed correctly Negative control: gives negative result if experimental conditions were followed correctly 2) What are the most abundant elements in living material? Carbon‚ Hydrogen‚ Oxygen‚ Nitrogen‚ Sulfur and Phosphorus 3) What are the 4 major biological macromolecules? Carbohydrates (monosaccharides &
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hemisphere of the egg — the animal pole — is dark. * The lower hemisphere — the vegetal pole — is light. * When deposited in the water and ready for fertilization‚ the haploid egg is at metaphase of meiosis II Fertilization Entrance of the sperm initiates a sequence of events: * Meiosis II is completed. * The cytoplasm of the egg rotates about 30 degrees relative to the poles. * In some amphibians (including Xenopus)‚ this is revealed by the appearance of a light-colored band‚
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