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Recessive

Ap Biology Chapter 14 Genetics Review

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Genetics
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Classical genetics
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Dominance
Recessive
Punnett square
Sickle-cell disease
genotype
Sickle cell trait
Genetic disorder
Hybrid
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
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Chapter 14 #5 A black guinea pig crossed with an albino guinea pig produces 12 black offspring. When the albino is crossed with a second black one, 7 blacks and 5 albinos are obtained. What is the best explanation for this genetic situation? Write genotypes for the parents, gametes, and offspring Answer Albino (b) is a recessive trait; black (B) is dominant. First cross: parents BB ? bb; gametes B and b; offspring all Bb (black coat). Second cross: parents bb ? Bb; gametes 1/2 B and 1/2 b (heterozygous parent) and b; offspring 1/2 Bb and 1/2 bb #6

Ap Biology Genetics Questions

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Genetics
Biology
Classical genetics
Philosophy of biology
Dominance
Recessive
Punnett square
genotype
Hybrid
Sickle-cell disease
Genetic disorder
Sickle cell trait
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
Personal life
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Evolutionary biology
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Genetics Problems 1. A rooster with gray feathers is mated with a hen of the same phenotype. Among their offspring, 15 chicks are gray, 6 are black, and 8 are white. What is the simplest explanation for the inheritance of these colors in chickens? What offspring would you predict from the mating of a gray rooster and a black hen? 2. In some plants, a true-breeding, red-flowered strain gives all pink flowers when crossed with a white-flowered strain: RR (red) x rr (white) ---> Rr (pink). If flower position (axial or terminal) is inherited as it is in peas what will be the ratios of genotypes and phenotypes of the generation resulting from the following cross: axial-red (true-breeding) x terminal-white? What will be the ratios in the F2 generation?

Ap Bio. Chapter 14 Review

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Classical genetics
Biology
Genetics
Philosophy of biology
Monohybrid cross
Punnett square
Dominance
Recessive
Zygosity
Mendelian inheritance
Dihybrid cross
genotype
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
Personal life
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Evolutionary biology
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Chapter 14 Mendel and the Gene Idea Overview: Drawing from the Deck of Genes What genetic principles account for the passing of traits from parents to offspring? The ?blending? hypothesis is the idea that genetic material from the two parents blends together (like blue and yellow paint blend to make green) The ?particulate? hypothesis is the idea that parents pass on discrete heritable units (genes) Mendel documented a particulate mechanism through his experiments with garden peas Concept 14.1: Mendel used the scientific approach to identify two laws of inheritance Mendel discovered the basic principles of heredity by breeding garden peas in carefully planned experiments Mendel?s Experimental, Quantitative Approach Advantages of pea plants for genetic study:

Hardy Weinberg Answers

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Dominance
Recessive
genotype
Allele frequency
Sickle cell trait
Hardy–Weinberg principle
Sickle-cell disease
health
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Bio II DiGennaro Hardy-Weinberg Practice Problems A population of rabbits may be brown (the dominant phenotype) or white (the recessive phenotype). Brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. The frequency of the BB genotype is .35. What is the frequency of heterozygous rabbits? 0.484 What is the frequency of the B allele? 0.59 What is the frequency of the b allele? 0.41 A hypothetical population of 10,000 humans has 6840 individuals with the blood type AA, 2860 individuals with blood type AB and 300 individuals with the blood type BB. What is the frequency of each genotype in this population? AA = 0.684 / AB = 0.286 / BB = 0.03 What is the frequency of the A allele? 0.827 What is the frequency of the B allele? 0.173

Hardy Weinberg Problems

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Genetics
Biology
Classical genetics
Philosophy of biology
Population genetics
Dominance
Recessive
genotype
Allele frequency
Sickle cell trait
Hardy–Weinberg principle
Sickle-cell disease
health
Human development
behavior
Interpersonal relationships
Love
Psychoanalysis
Attachment theory
Human behavior
Personal life
Technology

Bio II DiGennaro Hardy-Weinberg Practice Problems A population of rabbits may be brown (the dominant phenotype) or white (the recessive phenotype). Brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. The frequency of the BB genotype is .35. What is the frequency of heterozygous rabbits? What is the frequency of the B allele? What is the frequency of the b allele? A hypothetical population of 10,000 humans has 6840 individuals with the blood type AA, 2860 individuals with blood type AB and 300 individuals with the blood type BB. What is the frequency of each genotype in this population? What is the frequency of the A allele? What is the frequency of the B allele?

chapter 14 notes

Subject: 
Biology
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Genetics
Biology
Classical genetics
Philosophy of biology
Monohybrid cross
Dominance
Punnett square
Recessive
genotype
Mendelian inheritance
Dihybrid cross
Test cross
health
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Human behavior
Attachment theory
Evolutionary biology
Personal life
Technology

Chapter 14 Mendel and the Gene Idea Overview: Drawing from the Deck of Genes What genetic principles account for the transmission of traits from parents to offspring? One possible explanation of heredity is a ?blending? hypothesis The idea that genetic material contributed by two parents mixes in a manner analogous to the way blue and yellow paints blend to make green An alternative to the blending model is the ?particulate? hypothesis of inheritance: the gene idea Parents pass on discrete heritable units, genes Gregor Mendel Documented a particulate mechanism of inheritance through his experiments with garden peas Figure 14.1 Concept 14.1: Mendel used the scientific approach to identify two laws of inheritance Mendel discovered the basic principles of heredity

Genetics 2

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Classical genetics
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Recessive
Dominance
Gregor Mendel
Particulate inheritance
Gene
evolution
Blending inheritance
Plant breeding

Mendel's Genetics ? Hybridized domesticated horses For thousands of years farmers and herders have been selectively breeding their plants and animals to produce more useful?hybrids?. ? It was somewhat of a hit or miss process since the actual mechanisms governing inheritance were unknown.? Knowledge of these genetic mechanisms finally came as a result of careful laboratory breeding experiments carried out over the last century and a half. ? ? Gregor Mendel???? 1822-1884???

Genetics 1

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Biology
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Genetics
Classical genetics
Biology
Philosophy of biology
Monohybrid cross
Dominance
Recessive
Punnett square
Dihybrid cross
genotype
Test cross
Mendelian inheritance

Mendelian Genetics All Materials ? Cmassengale? 1862 1868 1880 Genetic Terminology: Trait?- any characteristic that can be passed from parent to offspring Heredity?- passing of traits from parent to offspring Genetics?- study of heredity Alleles?- two forms of a gene (dominant & recessive) Dominant?- stronger of two genes expressed in the hybrid; represented by a?capital letter (R) Recessive?- gene that shows up less often in a cross; represented by a?lowercase letter (r) Genotype?- gene combination for a trait (e.g. RR, Rr, rr) Phenotype?- the physical feature resulting from a genotype (e.g. tall, short) Homozygous?genotype - gene combination involving 2 dominant or 2 recessive genes (e.g. RR or rr); also called?pure?

Patterns of Heredity

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Biology
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Genetics
Biology
Classical genetics
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Dominance
Sex linkage
Zygosity
Recessive
Human genetics
genotype
heredity
Mendelian inheritance
health

Patterns of Heredity and Human Genetics Mendelian Inheritance of Human Traits Pedigree: a graphic representation of genetic inheritance A pedigree uses symbols that identify males and females, family relationships, individuals affected by a trait being studied. Carrier: an individual who carries a recessive trait that is not expressed (heterozygous) Simple Recessive Heredity Most genetic disorders are caused by recessive alleles. Cystic Fibrosis Most common fatal genetic disorder in US among people of European descent (1/28 carry, 1/2500 affected) Cells in respiratory and digestive system produce huge quantities of mucus Catch infections easily and suffocate Usually die before reach 20?s Tay-Sachs Disease

Chapter 11- Complex Inheritance and Human Heredity

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Biology
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Genetics
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Dominance
Recessive
Sex linkage
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Genetic disorder
Sickle-cell disease
Tay–Sachs disease
heredity
health

Chapter 11: Complex Inheritance and Human Heredity RECESSIVE GENETIC DISORDERS -A recessive trait that is expressed when the individual is homozygous recessive for the trait CYSTIC FIBROSIS -Affects the mucus-producing glands, digestive enzymes, and sweat glands ALBINISM -Caused by altered genes, resulting in the absence of melanin in hair and eyes TAY-SACHS DISEASE -Gangliosides (fatty acids) accumulate in the brain, inflating brain nerve cells and causing mental deterioration GALACTOSEMIA -Recssive genetic disorder characterized by the inability of the body to digest galactose DOMINANT GENETIC DISORDERS -Huntington's Disease affects the nervous system -Achondroplasia is a genetic condition that causes small body size and limbs that are comparatively short

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