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SEX-LINKED INHERITANCE
SEX-LINKED INHERITANCE

... • 1. Every affected person should have at least one affected parent. • 2. Males and females should be equally often affected. • 3. An affected person has at least a 50% chance of transmitting the dominant allele to each offspring. ...
Life Science
Life Science

...  Homozygous: Presence of two of the same alleles for the one genetic trait.  Heterozygous: Presence of two different alleles for one genetic trait.  Dominant allele: Characteristic that, if present on a ...
Document
Document

... 1. Assuming independent assortment, which of the crosses below will give a 3:3:1:1 ratio? A) AABB x aabb B) AaBb x Aabb C) AaBb x aabb D) AaBB x aaBb E) Aabb x aaBb 2. Suppose that a husband and wife are both heterozygous for a recessive allele that defines albinism. If they have dizygotic (twoegg) ...
Honors Biology Ch. 9 notes “Genetics” Mendel’s Laws
Honors Biology Ch. 9 notes “Genetics” Mendel’s Laws

... 9.3 Explain how Mendel’s Law of Segregation describes the inheritance of a single characteristic. A sperm or egg carries only one allele for each inherited character because allele pairs separate (segregate) from each other during the production of gametes. This explains how a trait can disappear i ...
Introduction Key Concepts
Introduction Key Concepts

... condition can bring about a change in the gene pool. #1 - A Large Breeding Population A large breeding population helps to ensure that chance alone does not disrupt genetic equilibrium. In a small population, only a few copies of a certain allele may exist. If for some chance reason the organisms wi ...
Mendel`s Work Notes - Nashua School District
Mendel`s Work Notes - Nashua School District

The Fishy Frequencies Lab
The Fishy Frequencies Lab

... Introduction to Hardy-Weinberg The Hardy-Weinberg Principle states that allele frequencies in a population will remain constant unless one or more factors cause those frequencies to change. The situation in which allele frequencies remain constant is called genetic equilibrium. Five conditions are r ...
The Fishy Frequencies Lab
The Fishy Frequencies Lab

... Introduction to Hardy-Weinberg The Hardy-Weinberg Principle states that allele frequencies in a population will remain constant unless one or more factors cause those frequencies to change. The situation in which allele frequencies remain constant is called genetic equilibrium. Five conditions are r ...
Name: ANSWER KEY Period: The Enchanted Equines of Enchancia
Name: ANSWER KEY Period: The Enchanted Equines of Enchancia

A genotype is
A genotype is

... individuals that marry into the families do not carry the trait. Most likely this disease is inherited as ...
fish frequencies
fish frequencies

... Introduction to Hardy-Weinberg The Hardy-Weinberg Principle states that allele frequencies in a population will remain constant unless one or more factors cause those frequencies to change. The situation in which allele frequencies remain constant is called genetic equilibrium. Five conditions are r ...
GENETICS QUIZZZZZ
GENETICS QUIZZZZZ

... Name_________________________ Date________________ Pd______ ...
Lec3
Lec3

English - Umeå Plant Science Centre
English - Umeå Plant Science Centre

... Family selection - The selection of families based on their mean performance. Farm-field test* A test done at close spacing under near-ideal conditions, usually for the purpose of early culling. Fertilisation Union of the nucleus and other cellular constituents of a male gamete (sperm) with those of ...
1) Imagine you are grabbing two socks, one from each of two
1) Imagine you are grabbing two socks, one from each of two

... 3) If you are told a population is in Hardy-Weinberg equilibrium, and that the recessive genotype frequency is 0.06, what is the frequency of heterozygotes? Show your work. 4) In a species of bird, individuals with genotype MM are susceptible to avian malaria and Mm birds are resistant to avian mala ...
Patterns of Gene Inheritance Mendel`s Laws Gregor Mendel What
Patterns of Gene Inheritance Mendel`s Laws Gregor Mendel What

... or more events are independent of one another, but can be accomplished in summation to each other = ...
Populations Close Notes Booklet - Morinville Community High School
Populations Close Notes Booklet - Morinville Community High School

... 1. Larger populations are less likely to have significant changes in allele frequencies. Small populations on the other hand may experience genetic drift. Genetic Drift: ...
Genetics - Arizona Branch of AALAS
Genetics - Arizona Branch of AALAS

BIO201InheritanceWeb
BIO201InheritanceWeb

... II. The basics of how genetic inheritance works (using humans as the example) A. In the individual 1. Genotype and Phenotype: a. Each of us inherits 23 chromosomes from mom and 23 from dad; they are homologous. b. Genotype c. Phenotype: If you get two of the same allele (ex, bb), you must express ( ...
Basic Principles of Heredity Notes AP Biology Mrs. Laux
Basic Principles of Heredity Notes AP Biology Mrs. Laux

... a. no uniform appearance (variation) b. some traits hide and skip II. Gregor Mendel -first idea of modern genetics -Austrian (Czech Republic now) monk who discovered fundamental principles of heredity A. Background: (what we know now) 1. traits encoded in DNAchromosomes 2. geneseveral nucleotides ...
Chapter 21 Active Reading Guide
Chapter 21 Active Reading Guide

... 21. Which of the factors above tends to reduce the genetic differences between populations and make populations more similar? 22. Of the three factors you listed above, only one results in individuals that are better suited to their environment. Which is it? 23. Explain what happens in each of thes ...
Blending vs. particulate inheritance?
Blending vs. particulate inheritance?

... - some traits are controlled by more than one gene, or genes exhibit incomplete dominance or are co-dominant. ...
Evolution 1/e
Evolution 1/e

F 1 generation
F 1 generation

... traits there were two factors Alleles: represent the factors - dominant CAPITAL LETTERS; recessive lower case letters; They are alternate forms of genes. Dominant trait: Able to repress the other trait Recessive trait: repressed by the dominant Homozygous: same alleles; RR or rr – also called purebr ...
11-1
11-1

... seeds by joining male & female repro cells from 2 different plants- (cross pollination). First he had to prevent self-pollination. • To do this, he cut away the male parts and dusted pollen from another plant onto the flower. • Produced seeds from 2 diff parents. This allowed Mendel to cross breed & ...
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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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