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Applications in population genetics
Applications in population genetics

... same in the second generation as in the first.  No matter how many generations are studied the relative frequencies will remain constant.  The actual numbers of individuals with each genotype will change as the population size increases or decreases, but their relative frequencies or proportions r ...
Breeding Bunnies
Breeding Bunnies

... 7. Create Your Hypothesis: Naked rabbits have a difficult time in the wild, because fur protects rabbits from cold winters. The cold winters are a selective force against naked rabbits. This means that naked rabbits often die before they can reproduce. Given this information, which allele do you thi ...
Chapter 12 - Angelfire
Chapter 12 - Angelfire

... • Thomas Hunt Morgan (1910) experimented with fruit fly eye color • Red Eyed Female (XRXR) x White-Eyed Male (XrY) • Assume two females and two males, what will the kids look like? • Females - all red (XRXr) • Males - all red (XRY) ...
answers to review questions chapter 4
answers to review questions chapter 4

... alleles of two unlinked genes into gametes occurs at random. ...
short genetics
short genetics

... 1.The inheritance of each trait is determined by "units" or "factors” passed on to descendents unchanged (Alleles on our genes) 2. For each trait, an individual inherits one such unit OR ALLELE from each parent 3. That a trait may not show up in an individual but can still be passed on to the next g ...
4th Exam is Thursday, December 9
4th Exam is Thursday, December 9

... equal chance of survival to reproductive age and equal chance of reproductive success. Any difference in survival or ability to reproduce is called natural selection. Natural selection is the strongest force that alters allele frequencies and is one of the most important factors inducing genetic cha ...
BB - Effingham County Schools
BB - Effingham County Schools

... • When humans select organisms for breeding to get desirable traits. Breeding chickens that lay the most eggs ...
Lecture PPT - Carol Eunmi LEE
Lecture PPT - Carol Eunmi LEE

... species, or groups of species. From Kimura ...
Lect 1 (Autosomal Inheritance) Lect 2 (Sex
Lect 1 (Autosomal Inheritance) Lect 2 (Sex

... eyed & all female displayed wild type. When white-eyed males & wild-type females bred, all progeny displayed wildtype phenotype. This led to conclusion that some genes are carried on sex chromosomes. X-linked recessive: males usually only affected as they have 1X, if X mutated, then males guaranteed ...
Gregor Mendel used pea plants to study
Gregor Mendel used pea plants to study

... 6. _______Offspring that result from crosses between parents with different traits a. are pure breeding c. make up the parental generation b. make up the F2 generation d. are called hybrids 7. _______Gregor Mendel concluded that traits are a. not inherited by offspring b. inherited through the passi ...
BIO 5099: Molecular Biology for Computer Scientists
BIO 5099: Molecular Biology for Computer Scientists

... I missed by a factor of 1000x the number of extant species in the world. (Thanks, Dan) http://www.all-species.org: “~1.7 million species have been identified and described. Estimates of undiscovered species on Earth range from 10 million to 100 million” ...
Genetics
Genetics

... males are square females round ...
File - Honors Biology 16-17
File - Honors Biology 16-17

... Genetic Drift can also lead to loss of genetic variation. Gradual increase in homozygosity is called inbreeding. Inbreeding depression ...
Genetics - Monroe County Schools
Genetics - Monroe County Schools

11. The roles of genes and environment in evolution
11. The roles of genes and environment in evolution

... 12th February 2014 ...
Name Date 11 Quiz
Name Date 11 Quiz

... c. the inheritance of traits. b. gamete formation. d. cross-pollination. 2. Gregor Mendel removed the male parts from the flowers of some plants in order to a. prevent hybrids from forming. b. prevent cross-pollination. c. stimulate self-pollination. d. make controlled crosses between plants. 3. The ...
Bio1A Unit 2-3 Genetics Notes File
Bio1A Unit 2-3 Genetics Notes File

... Sex-linked Traits • For a recessive sex-linked trait to be expressed – A female needs two copies of the allele – A male needs only one copy of the allele • Sex-linked recessive disorders are much more common in males than in females ...


Here - Mainely Science
Here - Mainely Science

... He planted tons of pea plants in a field and recorded his observations over 10  years  ...
Traits and Inheritance - Birmingham City Schools
Traits and Inheritance - Birmingham City Schools

... • But as scientists learned more about heredity, they began to find exceptions to Mendel’s principles. ...
FUNDAMENTALS OF GENETICS
FUNDAMENTALS OF GENETICS

... • Dimples is a dominant trait. A heterozygous mom and a homozygous recessive dad have a child. What is the phenotypic ratio and genotypic ratio of the possible offspring? What is the genotype and phenotype of the parents? ...
Biol2250 – Principles of Genetics – Dr Carr Problem solving
Biol2250 – Principles of Genetics – Dr Carr Problem solving

... marries  a  man  with  normal  vision,  what  proportions  of  their  male  and  female  offspring  will   inherit  the  night-­‐blindness?   ...
Ch 8: Mendel and Heredity
Ch 8: Mendel and Heredity

... subject for genetic research? A. B. C. D. ...
Natural Selection
Natural Selection

...  Suites of traits in biological entities fall into a nested pattern. All the species in a group will share traits they inherited from their common ancestor. But, each subgroup will have evolved unique traits of its own.  If two organisms share a similar anatomy, one would then predict that their ...
Chapter 13: Patterns of Inheritance
Chapter 13: Patterns of Inheritance

... A. Allowed Several Generations of Self-Fertilization 1. Progeny produced only a single form of a trait 2. Assured that forms of traits were transmitted regularly B. Conducted Crosses Between Alternate Forms of a Trait 1. Removed male parts from a flower with white flowers 2. Fertilized with pollen f ...
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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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