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3.1 PEDIGREES AND PROBABILITY The guidelines given below
3.1 PEDIGREES AND PROBABILITY The guidelines given below

Practice Problems in Mendelian Genetics Answers I Problems
Practice Problems in Mendelian Genetics Answers I Problems

... Therefore, of 8 kids: two straight, four wavy and two curly haired children. If three of the children have curly hair, would not expect that anything went “wrong”. 1:2:1 is and expected ratio, like 4 heads and 4 tails in 8 coin tosses. 7. DD: chestnut (dark brown); ...
Study Guide
Study Guide

... 46. The convention to writing a recessive allele is: _____________________________________________ 47. A homozygous gene has 2 of the same a________________________ for example ________________. 48. A heterozygous gene has 2 different a________________________ for example ________________. 49. For e ...
chapter14sganswersfall2008
chapter14sganswersfall2008

... 1. Why did Mendel use pea plant as a model organism for his study of genetic inheritance? Peas are available in many varieties, and he could strictly control which plants mated with which. Many of the pea plant traits (flower color, height, etc.) varied in an “eitheror” manner. 2. Mendel tracked onl ...
Body Size (g) - Sonoma Valley High School
Body Size (g) - Sonoma Valley High School

... • Nonrandom mating – Assortative mating • Phenotypically similar individuals mate • Increases proportion of homozygous individuals ...
Punnett Square Practice Chapter 9
Punnett Square Practice Chapter 9

... If females have an XX genotype and can only give X genes, which parent is the one that determines whether the baby is a boy or girl? Father ; The mother always gives an X If the father gives a y, it’s a boy. If the father gives an X; it’s a girl. ...
Punnett Square Practice Chapter 9
Punnett Square Practice Chapter 9

population genetics and the hardy-weinberg law
population genetics and the hardy-weinberg law

... many of these individuals become very ill from the parasite and many die. Individuals homozygous for the sickle-cell trait (ss) have red blood cells that readily collapse when deoxygenated. Although malaria cannot grow in these red blood cells, individuals often die because of the genetic defect. Ho ...
Using a Punnett Square
Using a Punnett Square

... • A tool to predict the probability of certain traits in offspring that shows the different ways alleles can combine • A way to show phenotype & genotype • A chart that shows all the possible combinations of alleles that can result when genes are crossed ...
Genetics
Genetics

... • A tool to predict the probability of certain traits in offspring that shows the different ways alleles can combine • A way to show phenotype & genotype • A chart that shows all the possible combinations of alleles that can result when genes are crossed ...
Genetic Diagrams and Disorders
Genetic Diagrams and Disorders

Topic 6: Evolution – 6d. Hardy-Weinberg Lab
Topic 6: Evolution – 6d. Hardy-Weinberg Lab

... Simulation 1: Begin by counting the number of students in the class and counting the genotypes in the class and then calculate the frequency of the alleles, A and a. Record this information on the Evidence Table. Each member will mate (exchange a card) with another member of the class. After the exc ...
Smiley Face Genetics
Smiley Face Genetics

... Background Information: Genes are the material that control which traits are expressed in an organism. There are two copies of each gene, one from the mother and one from the father. These genes can take different forms called alleles. For example, there is a gene for the height of a pea plant. The ...
Rock-Around-the-Clock PDF document
Rock-Around-the-Clock PDF document

... expanded it to cover 22 different strains of peas, studying seven different traits. Every time the second generation (F2) had the same 3:1 ratio. He hypothesized that every trait is controlled by two factors that are capable of being inherited. (See Punnett Square.) He believed that if the factors a ...
Genetics Notes
Genetics Notes

... • In one dihybrid cross experiment, Mendel studied the inheritance of seed color and seed shape. • The allele for yellow seeds (Y) is dominant to the allele for green seeds (y). • The allele for round seeds (R) is dominant to the allele ...
Mendel and punnetts squares notes
Mendel and punnetts squares notes

... heads and how many tails would you expect to get? Working with a partner, have one person toss a coin ten times while the other person tallies the results on a sheet of paper. Then, switch tasks to produce a separate tally of the second set of 10 tosses. ...
Practice questions in Mendelian genetics
Practice questions in Mendelian genetics

... c. X-linked dominant – label the pedigree, giving all the males a Y and the appropriate T or t, depending on whether they show the trait or not. All of the females must be heterozygous, and the pedigree is consistent with this hypothesis. d. X-linked recessive – This time, label the pedigree using t ...
Bell Work and Seating Chart
Bell Work and Seating Chart

... • Both alleles will be capital letters or lower case letters. • Heterozygous - Diploid organisms with two different alleles of a given gene. • One allele will be capital, one allele will be lowercase. ...
Practice Problems Crosses
Practice Problems Crosses

... In horses, one which runs best in water (or in wet conditions) is called (WATER), and one which runs best in dry conditions is called (DRY). (WATER) is recessive to (DRY). A horse can also be either a trotter, which we will designate (GAIT) or a pacer, which we will designate (PACE). (PACE) is reces ...
(b).
(b).

... for both traits. Dominant for one trait and 3/16 are _____________ Recessive for the other. _____________ Recessive for both traits. 1/16 are _____________ ...
Worksheet - Pedigree Practice Problems 2012 ANSWER KEY
Worksheet - Pedigree Practice Problems 2012 ANSWER KEY

... b. What are the genotypes and phenotypes of individuals 3 and 4 in the second generation? _____________________________________________________________________ c. ...
Lecture 3 - Population genetics.key
Lecture 3 - Population genetics.key

... 1) Assume a specific genetic model (single gene, dominant)   2) Assume a frequency for the disease allele p   3) Assume 3 penetrance functions: f_0, f_1, f_2   4) Simple to compute K=P(disease in population)   5) Assume random mating and HWE to get all possible genotypes for common ancestors ...
Mendel`s Laws: Human Inheritance of Single Gene Traits
Mendel`s Laws: Human Inheritance of Single Gene Traits

There’s Your Way OR
There’s Your Way OR

... • We need some more definitions: • A Trait can be DOMINANT or RECESSIVE • Dominant: this is trait that appears even in a hybrid. • Recessive: the trait that is not expressed in a hybrid. The trait is not visible if paired with a dominant trait. ...
Laws of Probability: Coin Toss Lab
Laws of Probability: Coin Toss Lab

... Individuals receive two alleles for each trait they inherit. These alleles are inherited from each of their parents and are located on homologous chromosomes. During meiosis, homologous chromosomes and the alleles they contain are segregated into separate gametes, resulting in haploid gametes with o ...
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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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