Introduction to Genetics
... • Ex: Does a gene that determines whether a seed is round or wrinkled have anything to do with seed color? • Genes do not have to be carried together – Travel independently ...
... • Ex: Does a gene that determines whether a seed is round or wrinkled have anything to do with seed color? • Genes do not have to be carried together – Travel independently ...
Genetics Unit 2 – Transmission Genetics
... 4. Self- and cross-fertilization are possible 5. Traits are easy to _______________ 6. They reproduce quickly and have many offspring. ***This was a large experiment (______________ plants) Monohybrid Cross – involves ___ trait (___ genes) P1 x P1 = ___ - P1 (parent generation) are _________________ ...
... 4. Self- and cross-fertilization are possible 5. Traits are easy to _______________ 6. They reproduce quickly and have many offspring. ***This was a large experiment (______________ plants) Monohybrid Cross – involves ___ trait (___ genes) P1 x P1 = ___ - P1 (parent generation) are _________________ ...
Variation exists within individuals, within populations, and among
... Examples of types of questions are given in italics Basic terminology – review terms in genetics (Hardy-Weinberg, Mendel, molecular genetics); you should not only be able to define the terms, but understand the concepts behind them Define F1, homozygote, allele, reciprocal cross, dominance A syndrom ...
... Examples of types of questions are given in italics Basic terminology – review terms in genetics (Hardy-Weinberg, Mendel, molecular genetics); you should not only be able to define the terms, but understand the concepts behind them Define F1, homozygote, allele, reciprocal cross, dominance A syndrom ...
CH # 3C
... • Cross True-breeding dominant plants with true-breeding recessive plants for the same characteristic • Ex) Pure Purple Flowers x Pure White Flowers ...
... • Cross True-breeding dominant plants with true-breeding recessive plants for the same characteristic • Ex) Pure Purple Flowers x Pure White Flowers ...
Directed Reading A
... Answers will vary. Sample answer: True-breeding plants are important because he then knew what to expect if his plants self-pollinated. Answers will vary. Sample answer: Mendel removed the anthers of one plant so that the plant could not self-pollinate. He then did the cross-pollinating himself. C B ...
... Answers will vary. Sample answer: True-breeding plants are important because he then knew what to expect if his plants self-pollinated. Answers will vary. Sample answer: Mendel removed the anthers of one plant so that the plant could not self-pollinate. He then did the cross-pollinating himself. C B ...
Powerpoint - Colorado FFA
... letters A and B refer to two carbohydrates on the surface of red blood cells. The i allele means that neither carbohydrate is present. The IA and IB alleles are both dominant over i, which is recessive. But neither IA or IB is dominant over the other. When IA and IB are both present in the genotype, ...
... letters A and B refer to two carbohydrates on the surface of red blood cells. The i allele means that neither carbohydrate is present. The IA and IB alleles are both dominant over i, which is recessive. But neither IA or IB is dominant over the other. When IA and IB are both present in the genotype, ...
Genetics and Inheritance - Parma City School District
... parents to their offspring • Gene = genetic material on a chromosome that contains the instructions for creating a particular trait • Allele = one of several varieties of a gene, an alternate form of the same gene for a given trait example: A or a (same letter, different case) • Locus = the location ...
... parents to their offspring • Gene = genetic material on a chromosome that contains the instructions for creating a particular trait • Allele = one of several varieties of a gene, an alternate form of the same gene for a given trait example: A or a (same letter, different case) • Locus = the location ...
Albinism Powerpoint
... OCA-1, OCA-2, and OCA-3 • OCA-1: occurs on chromosome 11 •OCA-2: occurs on chromosome 15 ...
... OCA-1, OCA-2, and OCA-3 • OCA-1: occurs on chromosome 11 •OCA-2: occurs on chromosome 15 ...
Living Things Inherit Traits in Patterns.
... Alleles interact to produce traits. Phenotype – describes the actual characteristics that can be observed. (What you can see in the mirror.) Height, eye color, size of your feet Genotype – the genes an organism has. Your genotype isn’t always obvious by looking at your phenotype. You could ha ...
... Alleles interact to produce traits. Phenotype – describes the actual characteristics that can be observed. (What you can see in the mirror.) Height, eye color, size of your feet Genotype – the genes an organism has. Your genotype isn’t always obvious by looking at your phenotype. You could ha ...
1 - Humble ISD
... 24. ______ Autosomal recessive disorder associated with faulty chloride channels; abnormal mucus production 25. ______ Autosomal recessive disorder characterized by inability to metabolize phenylalanine; controlled by diet 26. ______ Term used to describe mutated allele when normal allele protein pr ...
... 24. ______ Autosomal recessive disorder associated with faulty chloride channels; abnormal mucus production 25. ______ Autosomal recessive disorder characterized by inability to metabolize phenylalanine; controlled by diet 26. ______ Term used to describe mutated allele when normal allele protein pr ...
Tipp City Schools
... color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be Gray. ...
... color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be Gray. ...
Genetics SHOW
... dominant gene as BB.) A female rat has the homozygous recessive gene for fur color, which is ...
... dominant gene as BB.) A female rat has the homozygous recessive gene for fur color, which is ...
Incomplete Dominance, Codominance, and ABO Blood Types
... Let’s Stop and Think… Let’s say there are two alleles for the hair color trait- red and blue What would be the resulting phenotype of a heterozygous pair if the alleles showed codominance? ...
... Let’s Stop and Think… Let’s say there are two alleles for the hair color trait- red and blue What would be the resulting phenotype of a heterozygous pair if the alleles showed codominance? ...
iNTRO TO GENETICS PowerPoint
... • Genes for different traits can segregate independently during the formation of gametes (sex cells). • Mendel wondered if the gene for one trait, such as pea color, had anything to do with another trait such as pea shape. ...
... • Genes for different traits can segregate independently during the formation of gametes (sex cells). • Mendel wondered if the gene for one trait, such as pea color, had anything to do with another trait such as pea shape. ...
Genetics Power point
... F1 Generation: the first “filial” – child, first generation after the parents. F2 Generation: the second generation after the parents. ...
... F1 Generation: the first “filial” – child, first generation after the parents. F2 Generation: the second generation after the parents. ...
Review - Qc.edu
... Allele frequencies in a non-Hardy-Weinberg population: fr(A) = (2#AA + #Aa)/(2*total); fr(a) = (2#aa + #Aa)/(2*total) fr(A) = fr(AA)+0.5fr(Aa); fr(a) = fr(aa)+0.5fr(Aa) fr(A) +fr(a) = 1 fr(a) = 1 – fr(A); fr(AA)+fr(Aa)+fr(aa) = 1 In a Hardy-Weinberg population (infinitely large, randomly mating, n ...
... Allele frequencies in a non-Hardy-Weinberg population: fr(A) = (2#AA + #Aa)/(2*total); fr(a) = (2#aa + #Aa)/(2*total) fr(A) = fr(AA)+0.5fr(Aa); fr(a) = fr(aa)+0.5fr(Aa) fr(A) +fr(a) = 1 fr(a) = 1 – fr(A); fr(AA)+fr(Aa)+fr(aa) = 1 In a Hardy-Weinberg population (infinitely large, randomly mating, n ...
Non-Mendelian Inheritance PPT
... • X-linked recessive traits are traits resulting from a recessive allele on the X chromosome. • There are over 100 different human conditions that are caused by recessive alleles found on the X chromosomes. • X-linked recessive alleles are represented by a X , superscript lower case letter ...
... • X-linked recessive traits are traits resulting from a recessive allele on the X chromosome. • There are over 100 different human conditions that are caused by recessive alleles found on the X chromosomes. • X-linked recessive alleles are represented by a X , superscript lower case letter ...
File
... The ability to taste phenylthiocarbamide (PTC) depends on a single gene. This gene has two alleles. One is a dominant, tasting allele (T), and the other is a recessive, non-tasting allele (t). In a survey, it was found that 64% of people could taste PTC. (a) The Hardy-Weinberg equation is (p + q)2 = ...
... The ability to taste phenylthiocarbamide (PTC) depends on a single gene. This gene has two alleles. One is a dominant, tasting allele (T), and the other is a recessive, non-tasting allele (t). In a survey, it was found that 64% of people could taste PTC. (a) The Hardy-Weinberg equation is (p + q)2 = ...
Problem 1
... A round pea seed is germinated and the mature plant self-fertilized. It produces some wrinkled seeds. What was the genotype of the original seed? What is the expected proportion of wrinkled seeds produced by the mature plant? Problem 4 The recurrence risk of a genetic disorder is the probability ...
... A round pea seed is germinated and the mature plant self-fertilized. It produces some wrinkled seeds. What was the genotype of the original seed? What is the expected proportion of wrinkled seeds produced by the mature plant? Problem 4 The recurrence risk of a genetic disorder is the probability ...
Heredity Chapter 5-2
... Mendel came to 3 important conclusions from his experimental results: 1. The inheritance of each trait is determined by “units” or “factors” that are passed on to descendants (these units were later called genes) 2. An individual inherits one such gene from each parent for each trait. 3. A trait m ...
... Mendel came to 3 important conclusions from his experimental results: 1. The inheritance of each trait is determined by “units” or “factors” that are passed on to descendants (these units were later called genes) 2. An individual inherits one such gene from each parent for each trait. 3. A trait m ...
Dominance (genetics)
Dominance in genetics is a relationship between alleles of one gene, in which the effect on phenotype of one allele masks the contribution of a second allele at the same locus. The first allele is dominant and the second allele is recessive. For genes on an autosome (any chromosome other than a sex chromosome), the alleles and their associated traits are autosomal dominant or autosomal recessive. Dominance is a key concept in Mendelian inheritance and classical genetics. Often the dominant allele codes for a functional protein whereas the recessive allele does not.A classic example of dominance is the inheritance of seed shape, for example a pea shape in peas. Peas may be round, associated with allele R or wrinkled, associated with allele r. In this case, three combinations of alleles (genotypes) are possible: RR, Rr, and rr. The RR individuals have round peas and the rr individuals have wrinkled peas. In Rr individuals the R allele masks the presence of the r allele, so these individuals also have round peas. Thus, allele R is dominant to allele r, and allele r is recessive to allele R. This use of upper case letters for dominant alleles and lower caseones for recessive alleles is a widely followed convention.More generally, where a gene exists in two allelic versions (designated A and a), three combinations of alleles are possible: AA, Aa, and aa. If AA and aa individuals (homozygotes) show different forms of some trait (phenotypes), and Aa individuals (heterozygotes) show the same phenotype as AA individuals, then allele A is said to dominate or be dominant to or show dominance to allele a, and a is said to be recessive to A.Dominance is not inherent to an allele. It is a relationship between alleles; one allele can be dominant over a second allele, recessive to a third allele, and codominant to a fourth. Also, an allele may be dominant for a particular aspect of phenotype but not for other aspects influenced by the same gene. Dominance differs from epistasis, a relationship in which an allele of one gene affects the expression of another allele at a different gene.