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PUNNETT SQUARE PRACTICE PROBLEMS Example: There are
PUNNETT SQUARE PRACTICE PROBLEMS Example: There are

... Genotype for Offspring: There are 2 sets of alleles with HH, and 2 sets of alleles with Hh Phenotype for offspring: There is a 100% that the offspring will have brown hair, because the dominant gene will overpower the recessive gene. 1. There are two parents. The father contains two recessive allele ...
I. Gregor Mendel “father of genetics”
I. Gregor Mendel “father of genetics”

... • Inheritance is determined by factors passed on from one generation to another. • Mendel knew nothing about chromosomes, genes, or DNA. Why? ...
Pedigree Analysis
Pedigree Analysis

... such a mating to have a 50% chance of receiving the mutant gene and thus of being affected. A typical pedigree might look like this: ...
Biology 476: Conservation Genetics Lab
Biology 476: Conservation Genetics Lab

... Conservation genetics is the application of population genetics theory to the conservation of genetic diversity. Conservation genetics is particularly useful for making predictions about how the forces of evolution (selection, migration, drift, and mutation) will affect the loss, maintenance, or inc ...
08.06.04.Punnett.Square.[3.3.simple] - bettinahull2
08.06.04.Punnett.Square.[3.3.simple] - bettinahull2

... Before the lesson, read the questions and circle T or F in the left hand column. After lesson, re-read the question and circle T or F in the right hand column. ...
Five Drivers of Evolution
Five Drivers of Evolution

... cooler mountains tend to give birth to live young, the mother’s body providing a more stable temperature. It is to be predicted that these two populations will at some point separate into different species. ...
Describe aspects of biology (90188)
Describe aspects of biology (90188)

... Correct explanation for choice of parent genotypes. (m) Must use terms allele, gene and recessive correctly. Normal digits (ee) could show up in an Ee × Ee cross (or Ee × ee). It would be impossible if the parents were Ee and EE. OR At least one parent ie heterozygous / Ee / carries dominant and rec ...
Section 3-2C
Section 3-2C

... _____ 4. the entire genetic makeup of an organism ...
Extensions of Mendelian Inheritance
Extensions of Mendelian Inheritance

... Examples of sex limited inheritance? Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Chapter 5: Extensions of Mendelian Inheritance
Chapter 5: Extensions of Mendelian Inheritance

... The section opens with a discussion of wild-type and mutant alleles. In some instances, more than one wild-type allele can occur (Refer to Figure 5.1). This phenomenon is termed genetic polymorphism (Figure 5.1). In general, recessive alleles are due to mutations that result in a reduction or loss-o ...
Inheritance Problems
Inheritance Problems

... 27. A woman of normal vision, whose father was color-blind, marries a man of normal vision whose maternal grandfather was colorblind. What type of vision will be expected in their children? Color-blindness is sex linked recessive. XAXa x XAY Offspring: XAXA XAXa XAY XaY 28. Yellow body (y)...the rec ...
Slide 1
Slide 1

Pedigree Analysis
Pedigree Analysis

... • In this case there are 4 possible matings: 1. There is a 1/2 * 1/3 = 1/6 chance that the mating is RR x RR. In this case, 0 offspring will be affected (rr). 2. There is a 1/2 * 2/3 = 2/6 = 1/3 chance that the mating is RR x Rr. In this case, none of the offspring are affected. 3. There is a 1/2 * ...
Darwin, Mendel, and Genetics
Darwin, Mendel, and Genetics

... We obviously cannot know exactly how many offspring there will be of each genotype. What we can do is determine the average fraction of each genotype or phenotype that would appear if the population were big enough. Another way to say this is that we are computing the probability that a particular ge ...
pedigree analysis
pedigree analysis

... • In this case there are 4 possible matings: 1. There is a 1/2 * 1/3 = 1/6 chance that the mating is RR x RR. In this case, 0 offspring will be affected (rr). 2. There is a 1/2 * 2/3 = 2/6 = 1/3 chance that the mating is RR x Rr. In this case, none of the offspring are affected. 3. There is a 1/2 * ...
Heritability: The evolution of quantitative traits by artificial selection
Heritability: The evolution of quantitative traits by artificial selection

... Natural selection and artificial selection Natural selection stands as one corner stone of evolutionary biology and explanation for the diversity of life on earth. Some have called natural selection a deceptively simple concept, or instilled it with purposeful intent. However, natural selection is i ...
Tall
Tall

... making parts and ____________ added pollen from _______ another plant. This allowed him to _____________ cross-breed plants with ______________ different characteristics and study the results ________ ...
The Genetics of Potato Head Parenthood
The Genetics of Potato Head Parenthood

... Task: In this exercise Mr. and Mrs. Potato Head will model how genetic traits are inherited. You will be able to determine the phenotype (what the trait looks like) and the genotype (what the genes are inside of you). For each of the following traits you (Father potato-head ) and a partner (Mother p ...
heredity - Greenville Public School District
heredity - Greenville Public School District

Mendel and Heredity
Mendel and Heredity

... As you learned, the units of inheritance that Mendel studied are now called genes. You can think of a gene as a piece of DNA that stores instructions to make a certain protein. Each gene is located at a particular place on a chromosome called a Locus. Just like a house has an address on a street, a ...
Mono, Di crosses, Pedigrees WS
Mono, Di crosses, Pedigrees WS

... rabbits, there was one allele for brown hair color and one allele for white hair. However, some traits are coded for by more than two alleles. One of these is blood type in humans. This is a violation of Mendel’s Principle of unit characteristics. In humans, there are four types of blood; type A, ty ...
Nerve activates contraction
Nerve activates contraction

... • Each character (but one) is controlled by a single gene. • Each gene has only two alleles, one of which is completely dominant to the other. Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings ...
Punnett Square Problems
Punnett Square Problems

... 7. Malaria is a parasitic disease that’s prevalent in tropical areas. When a mosquito that’s carrying the parasites bites someone, the parasites enter the person’s bloodstream and invade and live in the person’s RBCs. However, if a person has sickle-cell anemia (ss), the presence of a parasite in a ...
HCS 825 Advanced Plant Breeding
HCS 825 Advanced Plant Breeding

... • Genetic improvement through crossing plants with desired traits and selecting progeny with improved performance and/or improved combinations of traits. • “Accelerated” and “targeted evolution”. • Application of genetics principles to crop improvement. • Systematic procedures used to improve trait ...
Outline for today`s lecture (Ch. 14, Part I) Ploidy vs. DNA content The
Outline for today`s lecture (Ch. 14, Part I) Ploidy vs. DNA content The

... – Many variable characters (e.g., flower color, seed shape, seed color, etc.) ...
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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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