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Chapter 14: Mendel and the Gene Idea
Chapter 14: Mendel and the Gene Idea

... c. Heterozygous individuals are said to have the sickle-cell trait, and are generally healthy, though some individuals may exhibit a sickling effect during periods of prolonged reduction of blood oxygen. 1. About one in ten Africans has the sickle-cell trait. 2. This unusually high percentage of het ...
Intro to Genetics
Intro to Genetics

... anaphase II formation in _________ of meiosis. ...
Hardy-Weinberg Equilibrium
Hardy-Weinberg Equilibrium

... b. Calculate the frequency of each allele. c. Calculate the frequency of each genotype. d. Suppose the frequency of each gene (allele) for red feathers is .42 ten years later in the same population. What could have caused the change in the gene frequency? ...
Genetics Terms You`ve Gotta Know
Genetics Terms You`ve Gotta Know

... Homozygous: When a person’s two alleles for a gene are the same (AA or aa)  Heterozygous: When a person’s two alleles for a gene are different (Aa)  You get one allele from your mom and one from your dad.  If you get the same alleles from your mom and dad, you are homozygous for that trait.  If ...
Mendel`s Laws of Heredity – Chp 10.1
Mendel`s Laws of Heredity – Chp 10.1

... Considered the Father of Heredity  Monk who first discovered that there are RULES or LAWS governing how traits are passed from parents to offspring  He crossed 1000’s of pea plants over many years to make his discovery ...
Genetics Vocab – Unit 4
Genetics Vocab – Unit 4

... ● Pedigree - Graphic organizer used to map genetic traits between generations ● Karyotype - Chart of an organism’s chromosome pairs used to determine sex of an offspring or chromosomal abnormalities. ● Test Cross - Mating of an individual of unknown genotype with an individual with a known genotype, ...
genetics - cloudfront.net
genetics - cloudfront.net

... Mendel discovered that each trait is controlled by two factors (alleles) Alleles – different versions of a gene ( represented by letters: T or t) Genes – factors that determine your traits Genes are located on chromosomes ...
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key bcacddcaddb - kehsscience.org

Unit 6 Student Notes - Flushing Community Schools
Unit 6 Student Notes - Flushing Community Schools

...  Some pea plants produced  Mendel observed that the pea plant’s traits were  Heredity = the passing of physical characteristics from parents to offspring.  Genetics = the scientific study of heredity  Mendel is known as the  Mendel’s Peas  A new organism begins to form when egg and sperm are ...
HUMAN GENETICS
HUMAN GENETICS

... 1. Polydactyly2. Huntington’s Disease a. Symptoms of Huntington’s usually do not develop until the person reaches their early 40’s. This disease is deadly. 3. Achondroplasia-rare form of dwarfism. Growth hormone production is shut down by a defective gene in this disorder. 4. Hutchinson-Gilford Prog ...
INHERITANCE Why do you look the way you do?
INHERITANCE Why do you look the way you do?

... • Traits determined by more than one ...
4.3 Theoretical Genetics Define the following: Genotype Gene
4.3 Theoretical Genetics Define the following: Genotype Gene

... d. Explain why human females can be homozygous or heterozygous for sex-linked genes, where males cannot. ...
notes File - selu moodle
notes File - selu moodle

... only a select few of them would even want to learn an alternate way to get the answers so I DON”T cover how to work crosses mathematically and I don’t expect them to be able to perform them this way. However, if you have students (in mass or not) that prefer to work them this way they can also get c ...
Vocab For Genetics - VCC Library
Vocab For Genetics - VCC Library

... As a verb, short for cross-breed: to mate two organisms with different traits, whether experimentally, or to create some advantageous result in the offspring. As a noun, an instance of cross-breeding. ...
Biology Notes: History of Genetics
Biology Notes: History of Genetics

... 1) How are dominant alleles expressed? ____________________________________________   a. How are recessive alleles expressed?_______________________________________  2) Which of the following are…   TT          Green          Yy          Pp          Purple          gg          Smooth  ...
Hardy-Weinberg Equilibrium Gene Pools Gene Pool Practice Hardy
Hardy-Weinberg Equilibrium Gene Pools Gene Pool Practice Hardy

... gene pool divided by the total # of allele in the gene pool ...
AOS2_ch13_population genetics_2012_student
AOS2_ch13_population genetics_2012_student

Classical (Mendelian) Genetics
Classical (Mendelian) Genetics

Honors Biology - WordPress.com
Honors Biology - WordPress.com

... If an organism has a certain characteristic that is always passed on to its offspring, we say that this organism bred true with respect to that characteristic. ...
Biology Section 6
Biology Section 6

... 2. 2 P generation plants with contrasting forms of a trait were cross-pollinated – the offspring of this generation were the F1 generation 3. F1 generation plants were allowed to self-pollinate – the offspring of these F1 generation plants were the F2 generation ...
Ch. 13 - Crestwood Local Schools
Ch. 13 - Crestwood Local Schools

... Results in hybrid offspring where the offspring may be different than the parents. ...
Biology Section 6
Biology Section 6

... this ensured that the plants were true-breeding for a particular trait – these plants were the P generation (parental) 2. 2 P generation plants with contrasting forms of a trait were cross-pollinated – the offspring of this generation were the F1 generation 3. F1 generation plants were allowed to se ...
Advanced Mendelian Genetics
Advanced Mendelian Genetics

... • The Punnett square predicts a 9:3:3:1 ratio in the F 2 generation ...
Lesson 8 Inheritance student copy
Lesson 8 Inheritance student copy

... had a double _______ allele  The parent that was short had a double _______ allele  Both of these parents were homozygous ...
Population Genetics and Patterns of Evolution
Population Genetics and Patterns of Evolution

... • Evolution is change over time, which means it occurs within a group whose individuals are actually breeding with each other; • and therefore, we study evolution by examining genetic change within a population. • INDIVIDUALS do NOT EVOLVE, a population evolves. ...
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Inbreeding

Inbreeding is the sexual reproduction of offspring from the mating or breeding of individuals or organisms that are closely related genetically. By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from incestuous sexual relationships and consanguinity.Inbreeding results in homozygosity, which can increase the chances of offspring being affected by recessive or deleterious traits. This generally leads to a decreased biological fitness of a population (called inbreeding depression), which is its ability to survive and reproduce. An individual who inherits such deleterious traits is referred to as inbred. The avoidance of such deleterious recessive alleles caused by inbreeding, via inbreeding avoidance mechanisms, is the main selective reason for outcrossing. Crossbreeding between populations also often has positive effects on fitness-related traits.Inbreeding is a technique used in selective breeding. In livestock breeding, breeders may use inbreeding when, for example, trying to establish a new and desirable trait in the stock, but will need to watch for undesirable characteristics in offspring, which can then be eliminated through further selective breeding or culling. Inbreeding is used to reveal deleterious recessive alleles, which can then be eliminated through assortative breeding or through culling. In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the effects of heterosis. Inbreeding in plants also occurs naturally in the form of self-pollination.
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