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Patterns of Inheritance
Patterns of Inheritance

... males than females – Males only needs to inherit one sex-linked recessive allele from mom to be expressed – Females has to inherit two sex-linked recessive alleles for ...
Genetics Notes - davis.k12.ut.us
Genetics Notes - davis.k12.ut.us

... be homozygous (both alleles for a trait are the same) or heterozygous (the alleles for a trait are different). An allele, (an alternative form of a gene), may occur due to mutations which create genetic variation. A gene is a distinct sequence of nucleotides forming a part of a chromosome. A genotyp ...
Notes Heredity File
Notes Heredity File

... discovered the basic principles of heredity through experiments in his monastery's garden. His experiments showed that the inheritance of certain traits in pea plants follows particular patterns, subsequently becoming the foundation of modern genetics and leading to the study of heredity. ...
Chapter 5 - SchoolRack
Chapter 5 - SchoolRack

... have a big nose? Do the cross! ...
Guided Notes-Genetics
Guided Notes-Genetics

... square; possible ________________________________ parent are written on the ______________ of the square. c. The genotypes are predicted by combining alleles from each parent. ...
PowerPoint
PowerPoint

... Observed that white-flowered parent plants produce white flowers  Observed that when bred w/ different-colored plant, different traits emerged. ...
Chapter 16
Chapter 16

... 16.5 Population Terms • Chromosomes: consist of a single molecule of DNA, a unit of heredity • The Gene Pool: all of the genes in a ...
Ways Genetic Eqilibrium can Change
Ways Genetic Eqilibrium can Change

... • Change in an organisms DNA that creates a new allele which leads to new phenotypes. • The source of genetic variability. • Need to be recombined • Rare; take long time to develop, can reduce fitness • (e.g.) Sickle cell anemia ...
BW 180-182
BW 180-182

... CHECK SHEET ASSIGNMENT ...
Problem Set 8 Genetics 371 Winter 2010 1. In a population
Problem Set 8 Genetics 371 Winter 2010 1. In a population

... quiz section. A recessive cancer-predisposing mutation would likely be in a tumor suppressor gene since both copies have to be inactivated. That inheritance doesn’t show a dominant pattern (like BRCA1 mutation) might suggest low penetrance of the single mutation, with only a small risk of early onse ...
There are five potential causes of microevolution 1. Genetic drift is a
There are five potential causes of microevolution 1. Genetic drift is a

... 4. Nonrandom mating is more often the case, particularly among animals, where choice of mates is often an important part of behavior. 5. Differential success in reproduction, is probably always the case for natural populations. The resulting natural selection is the factor that is likely to result i ...
Mendel’s Laws of Heredity
Mendel’s Laws of Heredity

... contain genes that control many different traits.  Each gene on one chromosome of the pair has a similar gene on the other chromosome of the pair.  Each gene of a gene pair is called an allele (uh LEEL) ...
Exam practice answers 8
Exam practice answers 8

Microevolution ppt
Microevolution ppt

... 1. Mutations/Recombination ...
Lecture #10 Date
Lecture #10 Date

... • 4- Nonrandom mating: inbreeding and assortive mating (both shift frequencies of different genotypes) ...
Population Genetics: Genetic Drift, Natural Selection, and Mutation.
Population Genetics: Genetic Drift, Natural Selection, and Mutation.

... “live” to reproduce. If the dice lands on 1, then the marble will not be added to the F1 progeny. However, if the dice lands on 2, 3, or 4, then the marble will survive to reproduce. In this example, the blue marble has a 75% chance of survival. Again, the students will be asked to compare these fin ...
Chapter 2 – Genotype Frequencies
Chapter 2 – Genotype Frequencies

... of simplifying assumptions about the structure of populations ² random mating* ² non-overlapping generations* ² migration (gene flow), mutation, and natural selection have negligible effects ²  large population size (= no genetic drift) ² sexual reproduction ² two alleles at a locus ² allele ...
File - hs science @ cchs
File - hs science @ cchs

... that code for tail bushiness. If a tree falls over the river and the squirrels are able to scamper across it to mate with the other population, gene flow occurs. The next generation of squirrels on the east side may have more bushy tails than those in the previous generation, and west side squirrels ...
COMMON GENETIC DISORDERS IN HUMANS
COMMON GENETIC DISORDERS IN HUMANS

... Note: Hundreds of recessive genetic disorders have been identified, and their origins are relatively easy to locate. Geographical and cultural reproductive isolation will always result in the mating of individuals with shared ancestry - inbreeding. Sex-linked genetic disorders ...
NAME
NAME

... Chapter 16 – Population Genetics and Speciation Section 1 – Genetic Equilibrium 1. What is population genetics? 2. What is another name for evolution at the genetic level? 3. What are two examples of traits that tend to show variation that follow a bell curve pattern? ...
Genetics Study Guide 2/08
Genetics Study Guide 2/08

... 6. Sex-linked traits that are controlled by recessive alleles are more likely to show up in males. _________________________ ...
genetics regularities of populations
genetics regularities of populations

... Frequency of allele IB for basic blood group B (in %) in European populations. Its frequency makes a gradient decreasing from the east to the west. The highest Is in Middle Asia and lowest in northeast Spain. It is still remarkable consequence Og migration waves – historical invasions of Mongolian T ...
Part C: Genetics
Part C: Genetics

... Environmental factors combined with genetic inheritance dictate the physical appearance or phenotype of an individual. This can be observed in twin studies. e.g. ...
bio 11 genetics sep 15
bio 11 genetics sep 15

... When individuals at the upper and lower ends have the highest fitness Birds with big and small beaks are more fit ...
16.1 Genes and Variations
16.1 Genes and Variations

... the upper and lower ends have the highest fitness • Birds with big and small beaks are more fit ...
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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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