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interactive-questions-01
... Sweat does contain sodium chloride and urea which can be regarded as excretory products. However, the sweat glands come into action in response to a rise in body temperature. The loss of salt and urea is quite incidental to the sweat glands’ function in temperature control. Therefore the sweat ...
... Sweat does contain sodium chloride and urea which can be regarded as excretory products. However, the sweat glands come into action in response to a rise in body temperature. The loss of salt and urea is quite incidental to the sweat glands’ function in temperature control. Therefore the sweat ...
Physics - ForumIAS.com
... Sex linked recessive trait resulting into the development of involuntary movements, mental retardation & kidney damage. Autosomal dominant resulting in abnormalities of body parts especially eyes & fingers. Sex linked recessive disease developing during 1-6 years. Patient becomes confined to wheel c ...
... Sex linked recessive trait resulting into the development of involuntary movements, mental retardation & kidney damage. Autosomal dominant resulting in abnormalities of body parts especially eyes & fingers. Sex linked recessive disease developing during 1-6 years. Patient becomes confined to wheel c ...
NATURE - Biology
... the transport of material out of a cell by means of a sac or vesicle that first engulfs the material and then is extruded through an opening in the cell membrane Define phagocytosis. Is it active or passive transport? A form of endocytosis. The cell changes shape by sending out projections which a ...
... the transport of material out of a cell by means of a sac or vesicle that first engulfs the material and then is extruded through an opening in the cell membrane Define phagocytosis. Is it active or passive transport? A form of endocytosis. The cell changes shape by sending out projections which a ...
ap biology exam review guide
... common);tRNA- carries amino acids; DNA- carries genetic code 6. Enzymes a. Biological catalysts (made of protein) that speed up rate of chemical reactions by lowering activation energy required for reaction to occur b. Enzyme has active site (exposed R groups) where reaction occurs c. Enzymes can br ...
... common);tRNA- carries amino acids; DNA- carries genetic code 6. Enzymes a. Biological catalysts (made of protein) that speed up rate of chemical reactions by lowering activation energy required for reaction to occur b. Enzyme has active site (exposed R groups) where reaction occurs c. Enzymes can br ...
BIOL 105 S 2014 QZM2 QA 140207.1
... 47. If an individual carries a pair of alleles that are the same, he or she is ________ for the trait. A) homologous B) homozygous C) heterozygous D) autosomal E) polygenic 48. If an individual carries two different alleles for the same trait, he or she is ________ for the trait. A) homologous B) ho ...
... 47. If an individual carries a pair of alleles that are the same, he or she is ________ for the trait. A) homologous B) homozygous C) heterozygous D) autosomal E) polygenic 48. If an individual carries two different alleles for the same trait, he or she is ________ for the trait. A) homologous B) ho ...
A-level Biology Question paper Unit 02 - The variety of living
... Heritability is a measure of how much of the variation in a population is due to genetic factors. Values for the heritability of a feature range from 0 to 1. A value of 0 means that there is no influence of genetic factors. A value of 1 means that the feature is completely due to genetic factors. Th ...
... Heritability is a measure of how much of the variation in a population is due to genetic factors. Values for the heritability of a feature range from 0 to 1. A value of 0 means that there is no influence of genetic factors. A value of 1 means that the feature is completely due to genetic factors. Th ...
IBO 2001 Theory part A_CCL - International Biology Olympiad
... A 50. Two similar plants of a species of angiosperm grew under different amount of sunlight. Plant I received full sunlight. Plant II received only seven percent sunlight. Both plants were grown in the same type of soil, and received equal amounts of water and the necessary mineral ions. At the end ...
... A 50. Two similar plants of a species of angiosperm grew under different amount of sunlight. Plant I received full sunlight. Plant II received only seven percent sunlight. Both plants were grown in the same type of soil, and received equal amounts of water and the necessary mineral ions. At the end ...
Theorie Partie A.p65
... A 50. Two similar plants of a species of angiosperm grew under different amount of sunlight. Plant I received full sunlight. Plant II received only seven percent sunlight. Both plants were grown in the same type of soil, and received equal amounts of water and the necessary mineral ions. At the end ...
... A 50. Two similar plants of a species of angiosperm grew under different amount of sunlight. Plant I received full sunlight. Plant II received only seven percent sunlight. Both plants were grown in the same type of soil, and received equal amounts of water and the necessary mineral ions. At the end ...
File
... In this example, a heterozygous make (Bb) is crossed with a homozygous recessive female (bb). 13. What is the distribution of genotypes in the offspring? ____________________________ 14. What is the distribution of phenotypes in the offspring? ___________________________ ...
... In this example, a heterozygous make (Bb) is crossed with a homozygous recessive female (bb). 13. What is the distribution of genotypes in the offspring? ____________________________ 14. What is the distribution of phenotypes in the offspring? ___________________________ ...
1 A. Biology: Glossary
... carrying capacity (K) largest population size that can be supported in an area without harming the environment cartilage dense connective tissue that provides a smooth surface for the movement of bones at joints catabolic reaction exothermic reaction in organisms cell basic unit of structure and fun ...
... carrying capacity (K) largest population size that can be supported in an area without harming the environment cartilage dense connective tissue that provides a smooth surface for the movement of bones at joints catabolic reaction exothermic reaction in organisms cell basic unit of structure and fun ...
EP BIOLOGY ANSWERS 1st Quarter - Easy Peasy All-in
... cell’s DNA is made. This ensures that each new cell has a set of genetic material identical to that of the parental cell. This process is called DNA replication. 3. The second growth phase (G2): Proteins are synthesized that will help the cell divide. At the end of interphase, the cell is ready to e ...
... cell’s DNA is made. This ensures that each new cell has a set of genetic material identical to that of the parental cell. This process is called DNA replication. 3. The second growth phase (G2): Proteins are synthesized that will help the cell divide. At the end of interphase, the cell is ready to e ...
Biology Test Out Bring at least two #2 pencils Test will be multiple
... The life sciences are changing in ways that have important implications for high school biology. Many of these changes concern our understanding of the largest and the smallest living systems. Molecular biology continues to produce new insights into how living systems work and how they are connected ...
... The life sciences are changing in ways that have important implications for high school biology. Many of these changes concern our understanding of the largest and the smallest living systems. Molecular biology continues to produce new insights into how living systems work and how they are connected ...
District Mid-Term Examination
... A. The cells will never run out of oxygen if the weightlifter is breathing. B. As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells. C. As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen ...
... A. The cells will never run out of oxygen if the weightlifter is breathing. B. As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells. C. As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen ...
2015 TX STAAR Biology Released Book - ESC-20
... 16 A genome-wide association study involves searching the genomes of many people in order to find genetic variations associated with common diseases such as cancer, asthma, and diabetes. These studies are possible because of computer databases that allow researchers to compare the genomes of people ...
... 16 A genome-wide association study involves searching the genomes of many people in order to find genetic variations associated with common diseases such as cancer, asthma, and diabetes. These studies are possible because of computer databases that allow researchers to compare the genomes of people ...
Using the Inquiry Page in a High School Classroom
... and passageways. Most CF patients die of bacterial infections resulting from blocked airways in the lungs. Most children with CF have frequent coughing, wheezing, and respiratory infections. ...
... and passageways. Most CF patients die of bacterial infections resulting from blocked airways in the lungs. Most children with CF have frequent coughing, wheezing, and respiratory infections. ...
HS Life Science Alignment
... One or many genes can determine an inherited trait of an individual, and a single gene can influence more than one trait. Before a cell divides, this genetic information must be copied and apportioned evenly into the daughter cells. B4.1 B B4.2 DNA – The genetic information encoded in DNA molecules ...
... One or many genes can determine an inherited trait of an individual, and a single gene can influence more than one trait. Before a cell divides, this genetic information must be copied and apportioned evenly into the daughter cells. B4.1 B B4.2 DNA – The genetic information encoded in DNA molecules ...
Directed Reading: Integumentary System
... ______22. Which of the following statements is true about a hair follicle? a. It contains living cells. c. It contains all dead cells. b. It makes new skin. d. It contains keratin. 23. Hair gets its color from ...
... ______22. Which of the following statements is true about a hair follicle? a. It contains living cells. c. It contains all dead cells. b. It makes new skin. d. It contains keratin. 23. Hair gets its color from ...
B - DHSTAKS
... Ultraviolet radiation can cause mutations in the DNA of skin cells that have been overexposed to the sun. This mutated DNA has no effect on future offspring because — F changes in skin cell DNA are homozygous recessive G mutations must occur within the RNA codons H offspring reject parental skin ce ...
... Ultraviolet radiation can cause mutations in the DNA of skin cells that have been overexposed to the sun. This mutated DNA has no effect on future offspring because — F changes in skin cell DNA are homozygous recessive G mutations must occur within the RNA codons H offspring reject parental skin ce ...
BIOLOGY Specification
... b. express the outcome as ratios, numbers, probabilities or percentages. 4.4. Define inheritance as the transmission of genetic information from generation to generation. ...
... b. express the outcome as ratios, numbers, probabilities or percentages. 4.4. Define inheritance as the transmission of genetic information from generation to generation. ...
Cell Membrane
... phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines - adenine and guanine. The pyrimidines are thymine and cytosine. The bases are known by their coded letters A, G, T, C. These bases always bond in a certain way ...
... phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines - adenine and guanine. The pyrimidines are thymine and cytosine. The bases are known by their coded letters A, G, T, C. These bases always bond in a certain way ...
Cells and Reproduction
... Imagine you have unlocked the part of your brain that remembers being in the uterus. What does it look like? What can you hear? Your task is to write an imaginative essay, starting with your creation as a single cell and describing your journey to becoming a little baby held for the first time by yo ...
... Imagine you have unlocked the part of your brain that remembers being in the uterus. What does it look like? What can you hear? Your task is to write an imaginative essay, starting with your creation as a single cell and describing your journey to becoming a little baby held for the first time by yo ...
PowerPoint
... How would a decrease in the concentration of oxygen in the lungs affect the diffusion of oxygen into the blood? A. decrease in molecule size results in decreased diffusion B. decrease in distance results in increased diffusion C. increase in electrical forces results in increased diffusion D. decre ...
... How would a decrease in the concentration of oxygen in the lungs affect the diffusion of oxygen into the blood? A. decrease in molecule size results in decreased diffusion B. decrease in distance results in increased diffusion C. increase in electrical forces results in increased diffusion D. decre ...
PowerPoint
... How would a decrease in the concentration of oxygen in the lungs affect the diffusion of oxygen into the blood? A. decrease in molecule size results in decreased diffusion B. decrease in distance results in increased diffusion C. increase in electrical forces results in increased diffusion D. decre ...
... How would a decrease in the concentration of oxygen in the lungs affect the diffusion of oxygen into the blood? A. decrease in molecule size results in decreased diffusion B. decrease in distance results in increased diffusion C. increase in electrical forces results in increased diffusion D. decre ...
AP BIOLOGY EXAM REVIEW GUIDE
... common);tRNA- carries amino acids; DNA- carries genetic code 6. Enzymes a. Biological catalysts (made of protein) that speed up rate of chemical reactions by lowering activation energy required for reaction to occur b. Enzyme has active site (exposed R groups) where reaction occurs c. Enzymes can br ...
... common);tRNA- carries amino acids; DNA- carries genetic code 6. Enzymes a. Biological catalysts (made of protein) that speed up rate of chemical reactions by lowering activation energy required for reaction to occur b. Enzyme has active site (exposed R groups) where reaction occurs c. Enzymes can br ...
Introduction to genetics
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Genetics is the study of genes — what they are, what they do, and how they work. Genes are made up of molecules inside the nucleus of a cell that are strung together in such a way that the sequence carries information: that information determines how living organisms inherit phenotypic traits, (features) determined by the genes they received from their parents and thereby going back through the generations. For example, offspring produced by sexual reproduction usually look similar to each of their parents because they have inherited some of each of their parents' genes. Genetics identifies which features are inherited, and explains how these features pass from generation to generation. In addition to inheritance, genetics studies how genes are turned on and off to control what substances are made in a cell - gene expression; and how a cell divides - mitosis or meiosis.Some phenotypic traits can be seen, such as eye color while others can only be detected, such as blood type or intelligence. Traits determined by genes can be modified by the animal's surroundings (environment): for example, the general design of a tiger's stripes is inherited, but the specific stripe pattern is determined by the tiger's surroundings. Another example is a person's height: it is determined by both genetics and nutrition.Genes are made of DNA, which is divided into separate pieces called chromosomes. Humans have 46: 23 pairs, though this number varies between species, for example many primates have 24 pairs. Meiosis creates special cells, sperm in males and eggs in females, which only have 23 chromosomes. These two cells merge into one during the fertilization stage of sexual reproduction, creating a zygote in which a nucleic acid double helix divides, with each single helix occupying one of the daughter cells, resulting in half the normal number of genes. The zygote then divides into four daughter cells by which time genetic recombination has created a new embryo with 23 pairs of chromosomes, half from each parent. Mating and resultant mate choice result in sexual selection. In normal cell division (mitosis) is possible when the double helix separates, and a complement of each separated half is made, resulting in two identical double helices in one cell, with each occupying one of the two new daughter cells created when the cell divides.Chromosomes all contain four nucleotides, abbreviated C (cytosine), G (guanine), A (adenine), or T (thymine), which line up in a particular sequence and make a long string. There are two strings of nucleotides coiled around one another in each chromosome: a double helix. C on one string is always opposite from G on the other string; A is always opposite T. There are about 3.2 billion nucleotide pairs on all the human chromosomes: this is the human genome. The order of the nucleotides carries genetic information, whose rules are defined by the genetic code, similar to how the order of letters on a page of text carries information. Three nucleotides in a row - a triplet - carry one unit of information: a codon. The genetic code not only controls inheritance: it also controls gene expression, which occurs when a portion of the double helix is uncoiled, exposing a series of the nucleotides, which are within the interior of the DNA. This series of exposed triplets (codons) carries the information to allow machinery in the cell to ""read"" the codons on the exposed DNA, which results in the making of RNA molecules. RNA in turn makes either amino acids or microRNA, which are responsible for all of the structure and function of a living organism; i.e. they determine all the features of the cell and thus the entire individual. Closing the uncoiled segment turns off the gene. Heritability means the information in a given gene is not always exactly the same in every individual in that species, so the same gene in different individuals does not give exactly the same instructions. Each unique form of a single gene is called an allele; different forms are collectively called polymorphisms. As an example, one allele for the gene for hair color and skin cell pigmentation could instruct the body to produce black pigment, producing black hair and pigmented skin; while a different allele of the same gene in a different individual could give garbled instructions that would result in a failure to produce any pigment, giving white hair and no pigmented skin: albinism. Mutations are random changes in genes creating new alleles, which in turn produce new traits, which could help, harm, or have no new effect on the individual's likelihood of survival; thus, mutations are the basis for evolution.