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Biology EOC review
... respiration, nutritional balance, etc. Cells communicate their needs to each other mainly through their cell membranes by releasing chemical messengers that, ultimately, tell the hypothalamus gland in the brain that a change needs to be made in the interstitial fluid. Since it is the ruler of homeos ...
... respiration, nutritional balance, etc. Cells communicate their needs to each other mainly through their cell membranes by releasing chemical messengers that, ultimately, tell the hypothalamus gland in the brain that a change needs to be made in the interstitial fluid. Since it is the ruler of homeos ...
glossary - Skinners` School Physics
... the diffusion of water molecules from a region of their higher concentration (dilute solution) to a region of their lower concentration (concentrated solution), through a ...
... the diffusion of water molecules from a region of their higher concentration (dilute solution) to a region of their lower concentration (concentrated solution), through a ...
Chapter 18. - Spokane Public Schools
... saves energy by not wasting it on unnecessary protein synthesis ...
... saves energy by not wasting it on unnecessary protein synthesis ...
Biology Study Guide - Jackson School District
... 2. Where is DNA found in the cell? 3. The shape of a DNA molecule is described as a _______________________________________. 4. A DNA molecule is made up of _________ strands that are held together at the bases by ________________. 5. What is the monomer (building block) that makes up DNA and RNA? ...
... 2. Where is DNA found in the cell? 3. The shape of a DNA molecule is described as a _______________________________________. 4. A DNA molecule is made up of _________ strands that are held together at the bases by ________________. 5. What is the monomer (building block) that makes up DNA and RNA? ...
LC Biology Sample Paper 6 HL Solutions
... (iv) The walls dissolve and a zygospore is formed by the fusion of the haploid nuclei. (n) (v) When conditions are favourable the zygospore germinates (divides by meiosis) to form a haploid hypha. 6 x (2) 1) Gametes move from each strand into the zygospore. 2) Fertilization is internal 3) A zygospor ...
... (iv) The walls dissolve and a zygospore is formed by the fusion of the haploid nuclei. (n) (v) When conditions are favourable the zygospore germinates (divides by meiosis) to form a haploid hypha. 6 x (2) 1) Gametes move from each strand into the zygospore. 2) Fertilization is internal 3) A zygospor ...
The 56th Annual - State Science Day
... division occur quickly for the shoot regrowth 41. Which of the following is not true of genetic switches? A) They allow different structures to evolve within an individual organism B) They determine when and where a gene is turned on or off C) They control how a molecular tool kit is used D) They in ...
... division occur quickly for the shoot regrowth 41. Which of the following is not true of genetic switches? A) They allow different structures to evolve within an individual organism B) They determine when and where a gene is turned on or off C) They control how a molecular tool kit is used D) They in ...
7 grade life science review packet
... 1. The cell theory states that all living things are made up of a. organisms b. cells c. tissues d. proteins 2. When cells similar in structure & function join together, they form a. tissues b. organs c. systems d. organisms 3. A sac in the cytoplasm of a cell that stores water, food, and other mate ...
... 1. The cell theory states that all living things are made up of a. organisms b. cells c. tissues d. proteins 2. When cells similar in structure & function join together, they form a. tissues b. organs c. systems d. organisms 3. A sac in the cytoplasm of a cell that stores water, food, and other mate ...
Chapter 3: Cell
... • Vesicular transport, which involves help from ATP, moves substances into or out of cells without their actually crossing the plasma membrane. • The two types of vesicular transport are exocytosis and ...
... • Vesicular transport, which involves help from ATP, moves substances into or out of cells without their actually crossing the plasma membrane. • The two types of vesicular transport are exocytosis and ...
File - Wildcat Biology Review
... RNA: single stranded ribonucleic acid (ribose sugar) Restriction Enzymes: unzips DNA so it can be read and copied Replication: copies DNA makes a complimentary strand occurs in nucleus mRNA: messenger RNA, end product of transcription (messenger RNA)carries a copy of genetic information instructions ...
... RNA: single stranded ribonucleic acid (ribose sugar) Restriction Enzymes: unzips DNA so it can be read and copied Replication: copies DNA makes a complimentary strand occurs in nucleus mRNA: messenger RNA, end product of transcription (messenger RNA)carries a copy of genetic information instructions ...
NYS Standards - Jamestown Public Schools
... An ecosystem is shaped by the nonliving environment as well as its interacting species. The world contains a wide diversity of physical conditions, which creates a variety of environments. ...
... An ecosystem is shaped by the nonliving environment as well as its interacting species. The world contains a wide diversity of physical conditions, which creates a variety of environments. ...
Answer Key for Activity #1 - Center for Occupational Research and
... 1. What is the relationship between DNA and RNA? RNA is a copy of a specific sequence of DNA. 2. True/False: DNA leaves the nucleus to be translated into proteins. False, DNA never leaves the nucleus. Only RNA will leave the nucleus. 3. Proteins are made in: a. The nucleus b. On the RNA c. Ribosomes ...
... 1. What is the relationship between DNA and RNA? RNA is a copy of a specific sequence of DNA. 2. True/False: DNA leaves the nucleus to be translated into proteins. False, DNA never leaves the nucleus. Only RNA will leave the nucleus. 3. Proteins are made in: a. The nucleus b. On the RNA c. Ribosomes ...
Characteristics of Life
... The great diversity of life on Earth is the result of a long history of change. Change in the inherited traits of species over generations is called evolution. A species is a group of genetically similar organisms that can produce fertile offspring. Individuals in a species are similar, but not iden ...
... The great diversity of life on Earth is the result of a long history of change. Change in the inherited traits of species over generations is called evolution. A species is a group of genetically similar organisms that can produce fertile offspring. Individuals in a species are similar, but not iden ...
Questions From Old Exams
... 17. Protozoans (animal-like protists) are usually categorized by: a. what they use to move around with b. what kind of chlorophyll they have c. whether they reproduce using club shapes or sac shapes d. whether they are heterotrophic or autotrophic e. where they usually live TRUE/FALSE Answer “a” if ...
... 17. Protozoans (animal-like protists) are usually categorized by: a. what they use to move around with b. what kind of chlorophyll they have c. whether they reproduce using club shapes or sac shapes d. whether they are heterotrophic or autotrophic e. where they usually live TRUE/FALSE Answer “a” if ...
GHSGT BIOLOGY REVIEW
... The blood cells get stuck in the smaller capillaries. Causes anemia, pain, fatigue, cramps, and organ damage. Some mutations can be useful. Genetic engineering uses those good mutations to give specific traits to plants and animals. DNA REPLICATION DNA is the instructions for the cell. DNA is made u ...
... The blood cells get stuck in the smaller capillaries. Causes anemia, pain, fatigue, cramps, and organ damage. Some mutations can be useful. Genetic engineering uses those good mutations to give specific traits to plants and animals. DNA REPLICATION DNA is the instructions for the cell. DNA is made u ...
Name - SchoolNotes
... Heterozygous- Two different size alleles (Pp) 9. What is the difference between dominant and recessive? Dominant- two big alleles, more common Recessive- two small alleles, less likely to show up until both parents carry a recessive allele 10. What is probability? the likelihood chance) that ...
... Heterozygous- Two different size alleles (Pp) 9. What is the difference between dominant and recessive? Dominant- two big alleles, more common Recessive- two small alleles, less likely to show up until both parents carry a recessive allele 10. What is probability? the likelihood chance) that ...
jeopardy - AMERICAN-HISTORY
... body shapes and limbs. Those land-dwellers began to spend more time in the ocean, perhaps because food was easier to find. In each generation, those with bodies that moved efficiently in water survived longer and produced more offspring than others. Eventually, the whole population came to resemble ...
... body shapes and limbs. Those land-dwellers began to spend more time in the ocean, perhaps because food was easier to find. In each generation, those with bodies that moved efficiently in water survived longer and produced more offspring than others. Eventually, the whole population came to resemble ...
Name
... 3. _________________________ organisms rely on each other to survive 4. _________________________ either sexually or asexually 5. _________________________ maintain a constant internal environment: “balance” (ex. Body temp.) 6. _________________________ pass on traits to offspring 7. _______________ ...
... 3. _________________________ organisms rely on each other to survive 4. _________________________ either sexually or asexually 5. _________________________ maintain a constant internal environment: “balance” (ex. Body temp.) 6. _________________________ pass on traits to offspring 7. _______________ ...
Ch 12.DNA and RNA.Biology.Landis
... DNA and Chromosomes (pages 295–296) 12. Circle the letter of the location of DNA in prokaryotic cells. a. nucleus b. mitochondria c. cytoplasm d. vacuole 13. Eurkaryotic DNA is generally located in the cell _______________________in the form of a number of chromosomes. 14. Circle the letter of each ...
... DNA and Chromosomes (pages 295–296) 12. Circle the letter of the location of DNA in prokaryotic cells. a. nucleus b. mitochondria c. cytoplasm d. vacuole 13. Eurkaryotic DNA is generally located in the cell _______________________in the form of a number of chromosomes. 14. Circle the letter of each ...
EOC Review Packet
... 5. The offspring of the P generation is the F1 (first Filial or first kid) generation 6. The offspring of the F1 generation is the F2 generation (second filial) 7. The Law of Independent Assortment states that each gene is inherited deparately from others if they are on different chromosomes. 8. The ...
... 5. The offspring of the P generation is the F1 (first Filial or first kid) generation 6. The offspring of the F1 generation is the F2 generation (second filial) 7. The Law of Independent Assortment states that each gene is inherited deparately from others if they are on different chromosomes. 8. The ...
Bio 101 Cumulative FINAL Homework Prof. Fournier
... Cumulative FINAL Homework 56. The chromosome number of a cell produced by mitotic cell division is represented by 2n. If that cell had been produced by meiotic cell division, its chromosome number would be represented by A) n ...
... Cumulative FINAL Homework 56. The chromosome number of a cell produced by mitotic cell division is represented by 2n. If that cell had been produced by meiotic cell division, its chromosome number would be represented by A) n ...
Presentation - science
... Milk fat is a type of lipid. What would you expect to happen to the pH of the liquid as it’s digested and why? Become more acidic. Fatty acids produced Why can’t amylase break down protein? The shape of the active site in amylase is not complementary to the shape of a protein molecule. ...
... Milk fat is a type of lipid. What would you expect to happen to the pH of the liquid as it’s digested and why? Become more acidic. Fatty acids produced Why can’t amylase break down protein? The shape of the active site in amylase is not complementary to the shape of a protein molecule. ...
Chapter 3 Review - Nutley Public Schools
... People try to lose weight by dieting. Researchers now know that dieting may reduce the amount of fat in the body, but it also changes how the body functions. When people diet, they usually limit the amount of food calories they take in. A dieter's body reacts to protect itself. Because of our evolut ...
... People try to lose weight by dieting. Researchers now know that dieting may reduce the amount of fat in the body, but it also changes how the body functions. When people diet, they usually limit the amount of food calories they take in. A dieter's body reacts to protect itself. Because of our evolut ...
Sickle Cell Anemia and Cystic Fibrosis
... Cystic fibrosis is a genetic disease that affects many different parts of the body. There are approximately 30,000 Americans with cystic fibrosis. The most serious problem is the production of extremely thick, sticky mucus that clogs up the bronchial tubes in the lungs and the passageways in the pan ...
... Cystic fibrosis is a genetic disease that affects many different parts of the body. There are approximately 30,000 Americans with cystic fibrosis. The most serious problem is the production of extremely thick, sticky mucus that clogs up the bronchial tubes in the lungs and the passageways in the pan ...
What You Absolutely Need to Know To Pass the NYS Living
... develop into specialized tissues. 1. Specialization or Differentiation: Process in which a cell changes to have a special shape and function. 2. Cells specialize by turning specific genes on or off. • Ex: A white blood cell has turned off all genes needed to make skin, bone, or nerves. It still has ...
... develop into specialized tissues. 1. Specialization or Differentiation: Process in which a cell changes to have a special shape and function. 2. Cells specialize by turning specific genes on or off. • Ex: A white blood cell has turned off all genes needed to make skin, bone, or nerves. It still has ...
from a few genes lifes myriad shapes
... In the same way, the cichlids have evolved pairs of matching species, arising independently in separate lakes in Africa. In Lake Malawi, for example, there is a long and flat-headed species with a deep underbite that looks remarkably like an unrelated species that lives a similar lifestyle in Lake T ...
... In the same way, the cichlids have evolved pairs of matching species, arising independently in separate lakes in Africa. In Lake Malawi, for example, there is a long and flat-headed species with a deep underbite that looks remarkably like an unrelated species that lives a similar lifestyle in Lake T ...
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.