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Chapter 11 Notes: Complex Genetic Patterns, Disorders, and
Chapter 11 Notes: Complex Genetic Patterns, Disorders, and

... If chromosomes fail to separate properly during meiosis, the gametes (sex cells) will not end up with the right number of chromosomes. Later on during fertilization if the egg or sperm contains one of these abnormal gametes, a nondisjunction can occur. If a zygote ends up with one extra chromosome, ...
Genetics - Louisiana Association of FFA
Genetics - Louisiana Association of FFA

... Want to raise weaning wt to 110 lbs Select a ram with a wean wt of 110 lbs Heritability of weaning wt is 30% What can you expect new lamb crop to weigh ...
n - 1
n - 1

... Polymorphic: Having genetic diversity. A locus in a population is polymorphic if it has more than one allele. Polymorphic loci are usually defined as having the most frequent allele at a frequency of less than 0.99 or less then 0.95. Monomorphic: Lacking genetic diversity. A locus in a population i ...
Bwyoung
Bwyoung

... • If a woman who is 6 ‘3’ and mates with a male who is 6 ‘7’… does that mean their son or daughter will be tall? Why? • No, their offspring could be malnourished. • Think of plants. Depending of the plant gets sunlight and water it affects how it will grow. ...
are genes - Cloudfront.net
are genes - Cloudfront.net

... – Traits are inherited as a result of factors passed from parents to offspring – We now know that these “factors” are genes ...
Sex Chromosomes
Sex Chromosomes

Work Packet - Huth Science
Work Packet - Huth Science

Since the entire class represents a breeding population, find a large
Since the entire class represents a breeding population, find a large

... 2. Has the population changed? ...
Variation in Populations
Variation in Populations

... H2 = 0.09 After many generations of selection the response to selection decreases. Pure-bred lines have little genetic variation for responding to selection. Variation within pure-bred lines is mostly or entirely environmental heritability is very low. ...
2.2 Theoretical genetics 1
2.2 Theoretical genetics 1

... In the early years of the 20th century, many crossing experiments were done in a similar way to those of Mendel. The French genetist Lucien Cuénot used the house mouse, Mus musculus, to see whether the principles that Mendel had discovered also operated in animals. He crossed normal grey-colored mi ...
Powerpoint
Powerpoint

Here - American Shetland Sheepdog Association
Here - American Shetland Sheepdog Association

... were  involved.    The  chromosome  31  risk  allele  is  more  common  in  Shelties  than  in  Collies.  In  places  in   the  research  publication,  the  risk  allele  at  the  DLA  complex  is  referred  to  as  “C”,  the  ri ...
About the Creeper Gene
About the Creeper Gene

... Japanese bantams (and some other breeds) carry a lethal allele related to short leg length. This article explains the basic genetics of this condition. There are a number of lethal genes in poultry, however in Japanese bantams, the Creeper (Cp) allele is the offender. This is a skeletal shortening m ...
ch04_lewis ppt
ch04_lewis ppt

... which single-gene traits and disorders occur in families Huntington disease is autosomal dominant - Affects both sexes and typically appears every generation Cystic fibrosis is autosomal recessive - Affects both sexes and can skip generations through carriers ...
Pedigrees Powerpoint
Pedigrees Powerpoint

File - Groby Bio Page
File - Groby Bio Page

Genetics Essentials 2e
Genetics Essentials 2e

... • Conclusion 1: one character is encoded by two genetic factors. • Conclusion 2: two genetic factors (alleles) separate when gametes are formed. • Conclusion 3: The concept of dominant and recessive traits. • Conclusion 4: Two alleles separate with equal probability into the gametes. Fig. 3.3 ...
Mendel and Heredity PPT
Mendel and Heredity PPT

... Mendel to Modern Heredity 1. Mendel stated that “factors,” which do not blend together, control each trait of a living thing. Each parent contributes one of these factors to their offspring. Today, we call these factors genes. 2. A gene is a section of DNA that codes for one protein. Genes are what ...
Chapter 3 Mendelian Genetics
Chapter 3 Mendelian Genetics

... acids for specific protein construction. 0 Allele: alternative forms of a gene; options. For Mendel’s pea plants, each gene had 2 alleles. 0 Homozygous: identical alleles; CC or cc 0 Heterozygous : not identical alleles; Cc ...
Dd.
Dd.

Inheritance of one trait
Inheritance of one trait

... Mendel conducted this experiment many times using true-breeding plants for each of the seven traits he had chosen to study. He obtained the same results every time: one trait was dominant over the other. Mendel concluded that heredity was definitely not just a blending of traits. He also concluded t ...
2. Selective breeding
2. Selective breeding

... convenient to group such characteristics in some logical way: (i) Traits showing a relatively small number of classes, and often controlled by a small number of genes. Examples of this type of traits are some fish colors, and scale patterns in certain species. (ii) Traits showing continuous variatio ...
File
File

... Gene: Segment of DNA that codes for a single protein or RNA. Controls what characteristics are expressed. Alleles: Variants of a specific gene. Dominant Allele: The allele that is expressed as long as a dominant allele is present. Recessive Allele: The allele that is expressed as long as no dominant ...
mendelian inheritance
mendelian inheritance

... Gene: Segment of DNA that codes for a single protein or RNA. Controls what characteristics are expressed. Alleles: Variants of a specific gene. Dominant Allele: The allele that is expressed as long as a dominant allele is present. Recessive Allele: The allele that is expressed as long as no dominant ...
Mendelian Genetics
Mendelian Genetics

... • Worked with pea plants in monastery garden – This was lucky, because peas have pretty simple genetics, as do many genes in most organisms. – His observations of dominant & recessive patterns of heredity allowed him to develop 2 important “laws”: ...
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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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