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Mendelian Genetics
Mendelian Genetics

BIO 103 Genetics Ch.12
BIO 103 Genetics Ch.12

... (3) Codominance: the heterozygote shows some aspect of the phenotypes of both homozygotes. ...
Genetics - walker2016
Genetics - walker2016

... Genetics – The study of how characteristics are transmitted from parents to offspring Heredity – The passing on of genetic characteristics from one generation to another ...
Dominant Phenotype Recessive Phenotype Genotypes
Dominant Phenotype Recessive Phenotype Genotypes

... **Note: Curly hair is an example of a trait that shows incomplete dominance. A person who is heterozygous (Hh) will have wavy hair. Sex-linked traits: Some genes are carried on the X chromosome. For a woman to express the recessive phenotype, she must have two copies of the recessive allele (ss). Fo ...
SCI 30 UA CH 2 Review Questions
SCI 30 UA CH 2 Review Questions

... 14. A dog breeder owns a dog that has just given birth to a litter of puppies. Both the father and the mother were selected from long lines of well-known and recorded pedigrees. One of the puppies has a red fur colouring that the breeder has never seen in any of the puppy’s ancestors. ...
9-2: Genetic Crosses
9-2: Genetic Crosses

... – No dominant or recessive allele; a heterozygous individual has an intermediate ...
Chapter 14: Mendelian Genetics Early Inheritance Ideas
Chapter 14: Mendelian Genetics Early Inheritance Ideas

...  P (parent) generation crossed  F1 (first filial) is offspring of P gen.  F2 (second) filial is offspring of cross b/w F1 individuals  F1 always 100% purple  Purple males & females used to eliminate sex as a factor  F2 a 3:1 ratio of purple to white o Mendel’s Conclusions  Unit Characters (Pa ...
Basic Genetics Problems File
Basic Genetics Problems File

Exam 3 Multiple Choice Practice Questions
Exam 3 Multiple Choice Practice Questions

... 1. Which of the following describes an organism’s relative fitness? a) survival b) number of matings c) adaptation to the environment d) successful competition of resources e) relative number of visible offspring 2. According to the Hardy-Weinberg principle, a) the allele frequencies of a population ...
DIHYBRID CROSSES
DIHYBRID CROSSES

...  what is the likelihood a specific trait will by inherited in regards to both phenotype and genotype  the number of ways a specific event can occur (total number of possible genetic outcomes) Rules: 1. past outcomes have no effect on the future outcomes 2. the probability of independent events occ ...
11.2 Probability and Punnett Squares
11.2 Probability and Punnett Squares

... trait that will always be seen if it is present – It is “stronger” than the recessive trait – Represented by a ...
ppt - Human Anatomy
ppt - Human Anatomy

... and yellow paints blend to make green. What would happen if this was the case? ...
DAY 2: Mechanisms of evolution
DAY 2: Mechanisms of evolution

... • the smallest biological unit that can evolve • individuals do not have diversity from which to select • changes in an individual over time, e.g. muscle size due to increased work outs, are NOT passed on to offspring (this is Lamarckian evolution!) ...
Patterns of Inheritance
Patterns of Inheritance

... Recessive allele is the other allele that does not affect the physical appearance ...
1. The ability to roll the tongue is dominant over the inability to do so
1. The ability to roll the tongue is dominant over the inability to do so

... right side of the chest. Mr. Spock has both of these traits, which are known to be determined by two different genes, with two alleles each. Suppose that Mr. Spock married an Earth woman and that they had many children. About half of their children look like Spock (pointed ears and right-sided heart ...
Document
Document

... man without freckles (ff) have children, what are the possible genotypes of the children? A.Ff B.Ff, ff ...
Slide 1
Slide 1

Review - BrandtBRC
Review - BrandtBRC

... What did Gregor Mendel do to study different characteristics in his genetics experiments? • a. He studied only asexual plants. • b. He studied only tall and short pea plants. • c. He cross-pollinated plants. • d. He cross-pollinated both plants and animals. ...
Black-Footed Ferret Bottleneck Scenario
Black-Footed Ferret Bottleneck Scenario

... 3. List the genetic characteristics that your population lost when it came through the bottleneck. (Colors not received) ...
Summer 2007
Summer 2007

... 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A. The percentage of butterflies in the population that are heterozygous. B. The frequency of homozygous dominant individuals. 5. After graduation, you a ...
Genetics
Genetics

... If an organism is better adapted to its environment, it is more likely to survive and pass along that adaptation to its offspring. We call this natural selection because nature “selects” the best adapted organisms to live (also called “survival of the fittest”). After many generations of offspring, ...
Chapter 6 - Angelfire
Chapter 6 - Angelfire

... • The strength of pedigrees is that they can show recessive traits in the family, but the weakness is that most genetic experiments are usually done with hundreds of offspring, whereas humans might only have one or two children. • The end result is a probability of a certain genetic disorder occurri ...
CHAPTER 11 MENDELIAN PATTERNS OF INHERITANCE
CHAPTER 11 MENDELIAN PATTERNS OF INHERITANCE

... dominance is present for both genes. c. Independent assortment during meiosis explains these results. B. Two-Trait Testcross 1. A two-trait testcross tests if individuals showing two dominant characteristics are homozygous for both or for one trait only, or heterozygous for both. 2. If an organism h ...
SI System of Measurement
SI System of Measurement

... He concluded that each plant had two sets of instructions for each trait, one from each parent. Today we know that ________, found on chromosomes, determine traits. Each gene has two or more different forms called ________. When studying genetics today, we can set up __________ squares. The squares ...
Congrats! You`re Having A Baby!
Congrats! You`re Having A Baby!

... Geneticists try to predict the possible genotypes and phenotypes of the next generation. Sometimes they use a simple Punnett square or the mathematics of probability. Below is a Punnett square for a ...
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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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