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Mendelian Terminology
Mendelian Terminology

...  YY = two yellow alleles (both dominant)  yy = two green alleles (both recessive)  PP = two purple alleles (both dominant)  pp = two white alleles (both recessive)  Homozygous means purebred. If an individual has two different alleles of a certain gene, the individual is heterozygous for the re ...
grade recovery worksheets due monday april 10, 2017
grade recovery worksheets due monday april 10, 2017

... 27. ___________________—a person who has one recessive allele for a trait and one dominant allele. Carrier can pass the recessive allele on to his or her offspring. In sex-linked traits, only females can be carriers. 28. ________________________________—experimenting with biological and chemical met ...
Review of Hardy Weinberg
Review of Hardy Weinberg

... efforts of thinking men and women who have applied their inquisitive and dedicated thought processes in the fields of medicine, industrial safety, hygiene and sanitary measures, chemistry, and research in genetics, microbiology, the environment, and other disciplines, all involving the processes of ...
Genetics Simplified
Genetics Simplified

40. Unit 8 Study Guide
40. Unit 8 Study Guide

... 9. Freckles (F) are a dominant trait. The Punnett square for a non-freckled parent and a heterozygous freckled parent is shown. What is the probability that their children will have freckles? ~50% (2 out of 4 possible offspring will have a genotype (Ff) that results in a dominant phenotype. ff = rec ...
Trait
Trait

... When only one trait is being studied in a genetic cross, it is called a monohybrid cross. ◦ When parent organisms, called the P generation, are crossed, the resulting offspring are the first filial, or F1 generation. ◦ When organisms of the F1 generation are crossed, their offspring make up the sec ...
What are Sex-Linked Traits?
What are Sex-Linked Traits?

... hemophilia to evaluate the possibility of having offspring with the disorder. The wife does not have hemophilia, but states that her father had the disorder. The husband is normal. ...
File
File

... What were the chances of Lily being a witch? What were the chances of Petunia being a muggle? What are the chances that Petunia is a “carrier”? ...
4. Pedigree Analysis
4. Pedigree Analysis

... Pedigree shows that offspring of two parents affected by two different types of deafness are unaffected. Locus heterogeneity: Where the same clinical phenotype can result from mutations from any of several different genes. ...
4. Pedigree Analysis
4. Pedigree Analysis

... Pedigree shows that offspring of two parents affected by two different types of deafness are unaffected. Locus heterogeneity: Where the same clinical phenotype can result from mutations from any of several different genes. ...
Document
Document

... 9.4 Homologous chromosomes bear the alleles for each character Gene loci P ...
sickle cell anemia allele frequency - word
sickle cell anemia allele frequency - word

... Allele frequencies can change in a population over time, depending on the 'selective forces' shaping that population. Predation, food availability, and disease are all examples of selective forces. Evolution occurs when allele frequencies change in a population! In this activity, red and white beans ...
Classical (Mendelian) Genetics
Classical (Mendelian) Genetics

... • Because the principles established by Mendel form the basis for genetics, the science is often referred to as Mendelian genetics • It is also called classical genetics to distinguish it from another branch of biology known as molecular genetics ...
crazy traits
crazy traits

... Can roll tongue or cannot roll tongue Traits are determined by genes. When parents reproduce, they each pass on two or more variations of a gene to their offspring. These different forms of genes are called alleles. An offspring randomly inherits two alleles, one from each parent. If the alleles are ...
Pedigrees - s3.amazonaws.com
Pedigrees - s3.amazonaws.com

... recessive. (remember: the dominant traits shows if there is one or two, the recessive shows only if there are two) – If the trait is dominant, one of the parents must have the trait. – If the trait is recessive, neither parent has to have the trait because they can be heterozygous. ...
F 1 - WordPress.com
F 1 - WordPress.com

... gene—one copy from mom and a second copy from dad. These copies may come in different variations, known as alleles, that express different traits. For example, 2 alleles in the gene for freckles are inherited from mum and dad: – allele from mum = has freckles (F) – allele from dad = no freckles (f) ...
Punnett Squares and Probability
Punnett Squares and Probability

... Probability is a number that describes how likely it is that an event will occur. The principles of probability predict what is likely to occur, not necessarily what will occur. For example, in a coin toss, the coin will land either heads up or tails up. Each of these two events is equally likely to ...
Document
Document

... • 11. Determine the gene frequency of F and f for each generation and record them in the chart in the columns labeled "Gene Frequency F" and "Gene Frequency f." To find the gene frequency of F, divide the number of F by the total, and to find the gene frequency of f, divide the number of f by the to ...
Mendel’s Law of Heredity
Mendel’s Law of Heredity

... • Mendel concluded in his law of segregation that every individual has two alleles of each gene. ( two forms of the same trait) • One from mom and one from dad • When gametes are produced, each gamete receives one of the two alleles. ...
2 Traits and Inheritance
2 Traits and Inheritance

... Mendel knew from his pea plant experiments that there must be two sets of instructions for each characteristic. All of the first-generation plants showed the dominant trait. However, they could give the recessive trait to their offspring. Instructions for an inherited trait are called genes. Offspri ...
Mendel’s Law of Heredity - Mrs. McGee's Biology Class
Mendel’s Law of Heredity - Mrs. McGee's Biology Class

... • Mendel concluded in his law of segregation that every individual has two alleles of each gene. ( two forms of the same trait) • One from mom and one from dad • When gametes are produced, each gamete receives one of the two alleles. ...
ABG 300 Lecture Notes
ABG 300 Lecture Notes

... DNA recovered from semen, blood, skin cells, or hair found at a crime scene can be analyzed in a laboratory and compared with the DNA of a ...
Hardy Weinberg Equilibrium Problems
Hardy Weinberg Equilibrium Problems

... 11. Sickle-cell anemia is a disease caused by the inheritance of a dominant sickle gene. This gene is codominant with the normal hemoglobin gene. In a certain African tribe, 4% of the population is born with sickle-cell disease having inherited both dominant sickle genes. What is the percentage of i ...
Biololgy 20 GENETICS Genetics: Genetics History: Aristotle
Biololgy 20 GENETICS Genetics: Genetics History: Aristotle

... 3) What percentage of their sons will have normal vision? 4) What percentage of their daughters will have normal vision? 5) Will they have any colorblind children? If so, whom? Sex Influenced Traits: Biology 20 Lecture ...
lecture 13, part 2, how populations evolve, 051209c
lecture 13, part 2, how populations evolve, 051209c

... privilege, reproductive success is generally more subtle and passive. A frog, for example, may produce more eggs than others because she is more efficient at catching insects for food. Individuals in a wildflower population may differ in reproductive success because some are better able to attract p ...
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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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