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Chapter 5
Chapter 5

... Ex. What possible genotypes will the offspring have if the parents’ blood types are O and AB? Answer: AO or BO. ...
Using Crossbreeding and Hybrids
Using Crossbreeding and Hybrids

... • Artificial means of producing desirable traits. • Genes can be moved from one species to another. • Gene splicing is the moving of hereditary characteristics from one organism to another often unrelated organism. ...
Lecture Series 9 Presentation Slides
Lecture Series 9 Presentation Slides

... • Rare harmful recessives become homozygous at higher frequency ...
Chapter 3 Genetics
Chapter 3 Genetics

... Gregor Mendel: a priest who studied how physical characteristics were passed down to offspring in pea plants. -his work/ideas formed the foundation of genetics. -he is known as the Father of Genetics ...
Livestock Breeding System Vocab
Livestock Breeding System Vocab

... mating of related individuals in which the sire and dam share at least one ancestor ...
Oct 30 - University of San Diego
Oct 30 - University of San Diego

... Somatic mutations seldom passed to next generation Most mutations harmless ...
G. fortis
G. fortis

... • For evolution to occur, variation in a trait must be partly genetic (nature rather than just nurture) – We can test the contribution of nature and nurture to a given trait. • Breeding animals and following offspring over time • Identical twin studies in humans • Common garden experiments in plants ...
II-1 to II-5
II-1 to II-5

... (1) Assortative mating: mating between individuals with similar phenotypes or among individuals that occur in a particular location. (2) Inbreeding: mating between related individuals. – Both types of nonrandom mating may have similar consequences since individuals with similar phenotypes often have ...
1 - F
1 - F

... Tutorial times to be announced. PREVIOUSLY Deterministic evolution, via natural selection. TODAY Inbreeding: does not cause evolution on its own; -- affects arrangement of genes in populations; & has important fitness effects. ...
Bio07_TR__U04_CH11.QXD
Bio07_TR__U04_CH11.QXD

... themselves, are TRUE-BREEDING ________ 12. Although organisms with the same physical characteristics have the same PHENOTYPE ___________ , they might have different GENOTYPE ____________ , or genetic makeup. 13. According to the principle known as LAW OF INDEPENDENDT ASSORTMENT , genes that segregat ...
Chapter 6
Chapter 6

... populations. • Non-random mating due to mate selection based on phenotypic differences leads to sexual selection. Inbreeding, another form of non-random mating, increases the frequency of homozygous genotypes in a gene pool. • Genetic drift can result in the loss of alleles from small populations du ...
06_prughNS
06_prughNS

... Random changes in the frequency of alleles from ...
Chapter 17
Chapter 17

... • ***The major source of new alleles in a natural population is mutation in germ cells. (The sperm and ova) ...
Breeding strategies - Tree Improvement Program
Breeding strategies - Tree Improvement Program

... • All of these models may hold true for different traits, however we chose to model the expression of major deleterious recessive genes as this type of effect has been observed in previous loblolly pine studies • While inbreeding depression can occur among full sibs or other related individuals, sel ...
05 Evolutionary Mechanisms
05 Evolutionary Mechanisms

... Genetic mutations create new alleles or change an existing one into another, thereby changing the frequency of both alleles. Gene duplications are the main source of new genetic material, as extra copies they are free to mutate with less likelihood of causing harm. Mutations occur as 1 in 10000 in a ...
Logan Rayborns Biology CrosswordsM
Logan Rayborns Biology CrosswordsM

... 3. dominance a form of intermediate inheritance in which one allele for a specific trait is not completely expressed over its paired allele. 4. assortment formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous chromosomes by the passage according to ...
2.3 Genetic Variation Assessment Schedule 07
2.3 Genetic Variation Assessment Schedule 07

... individuals are, the more alleles they have in common. This means that their offspring have a greater chance of inheriting these favourable alleles and so having desirable phenotypes. However, individuals tend to have harmful recessive alleles in their genotype too. By breeding closely related indiv ...
Oct 11 - University of San Diego
Oct 11 - University of San Diego

... AABBCC = Darkest skin color aabbcc = Lightest skin color Population typically shows normal distribution of trait ...
Hardy-Weinberg Homework Problems
Hardy-Weinberg Homework Problems

... population that may be heterozygous carriers of recessive alleles for certain genetic diseases. Phenylketonuria (PKU) is a human metabolic disorder that results in mental retardation if it is untreated in infancy. In the United States, one out of approximately 10,000 babies is born with the disorder ...
Assessment Schedule 2010 AS 90459 (Biology 2.3) Describe
Assessment Schedule 2010 AS 90459 (Biology 2.3) Describe

... the degree of relatedness between all members of the population is high. This increases the chances of harmful recessive alleles coming together in any individual so reducing its fitness. ...
Genetic Defects in Beef Cattle
Genetic Defects in Beef Cattle

...  Will see all genotypes in the population (AA, AB, and BB)  Animals may have reduced performance or other deleterious effects, but are functional organisms ...
postdoc kelp selection GENIALG Roscoff
postdoc kelp selection GENIALG Roscoff

... reduced crossing compatibility due to inbreeding depression, whereas crosses between parents that are too different genetically may lead to an outbreeding depression by disrupting adaptive complexes. An intermediate optimal outcrossing distance is therefore expected as a compromise between inbreedin ...
Genetics - Easy Plan Book
Genetics - Easy Plan Book

... 1851 – worked with pea plants to study the effects of crossing plants with certain traits with others. Came up with a couple of rules, and ideas of how heredity works. ...
No Slide Title
No Slide Title

review sheet modern genetics answers
review sheet modern genetics answers

... 14. The Human Genome project identified the DNA sequence of every gene in the human genome. This knowledge may allow scientists to use genetic engineering techniques to cure genetic disorders or other health problems. 15. Inbreeding is selective breeding involving crossing 2 organisms with similar c ...
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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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