Life Science Chapters 3 & 4 Genetics Gregor Mendel
... • Must be able to determine the genotypes of the parents In this case, when two hybrids are crossed, the possible outcomes are: the phenotype ratio is 3:1 3 dominant 1 Recessive genotype ratio is 1:2:1 1 Homozygus dominant 2 Heterozygus 1 Homozygus recessive ...
... • Must be able to determine the genotypes of the parents In this case, when two hybrids are crossed, the possible outcomes are: the phenotype ratio is 3:1 3 dominant 1 Recessive genotype ratio is 1:2:1 1 Homozygus dominant 2 Heterozygus 1 Homozygus recessive ...
Slides - SFU.ca
... • Nature selects for phenotypes but genes may cause particular phenotypes to be expressed ...
... • Nature selects for phenotypes but genes may cause particular phenotypes to be expressed ...
Mendel, Alleles, Punnentt squares Complex Punnett Squares VOCAB:
... Punnett square and you count the boxes for the phenotypes or genotypes. Dihybrid Cross: A cross where you track 2 alleles. Boxes will have 4 letters. KEEP THE LETTERS TOGETHER!!!!!!! ...
... Punnett square and you count the boxes for the phenotypes or genotypes. Dihybrid Cross: A cross where you track 2 alleles. Boxes will have 4 letters. KEEP THE LETTERS TOGETHER!!!!!!! ...
Biology Pre-Learning Check
... Complete (Simple ) dominance Incomplete dominance Codominance Dihybrid crosses Sex-linked traits Pedigrees The assessment for this unit will be a paper and pencil test over genetics and inheritance. It has multiple choice and diagrams. There will be some genetic problems for you to interpret, ...
... Complete (Simple ) dominance Incomplete dominance Codominance Dihybrid crosses Sex-linked traits Pedigrees The assessment for this unit will be a paper and pencil test over genetics and inheritance. It has multiple choice and diagrams. There will be some genetic problems for you to interpret, ...
Sample “Content” Lesson Plan: 45 minutes total
... Genotype used to represent which alleles an organism has. Usually the letter is determined by the dominant allele. Capital letter for dominant allele, lower case for recessive allele So, for the example above, B for brown eyes, b for green eyes. 2 brown eye alleles= BB, 2 green eye alleles= ...
... Genotype used to represent which alleles an organism has. Usually the letter is determined by the dominant allele. Capital letter for dominant allele, lower case for recessive allele So, for the example above, B for brown eyes, b for green eyes. 2 brown eye alleles= BB, 2 green eye alleles= ...
Monohybrid Cross Worksheet
... hair and the recessive is long hair. Suppose a heterozygous female dog and a homozygous recessive male dog mate. a. What is the male dog’s genotype and the female dog’s genotype? b. What is the male dog’s phenotype and the female dog’s phenotype? c. What will be the genotypic ratio of the F1 generat ...
... hair and the recessive is long hair. Suppose a heterozygous female dog and a homozygous recessive male dog mate. a. What is the male dog’s genotype and the female dog’s genotype? b. What is the male dog’s phenotype and the female dog’s phenotype? c. What will be the genotypic ratio of the F1 generat ...
Mendel`s Law of Segregation
... 1. Alternative versions of genes account for variations in inherited characters - concept of alleles (G=green, g=yellow) 2. For each character, an organism inherits two genes, one from each parent - two gametes form somatic cells - one allele comes from the mother, one from the father ...
... 1. Alternative versions of genes account for variations in inherited characters - concept of alleles (G=green, g=yellow) 2. For each character, an organism inherits two genes, one from each parent - two gametes form somatic cells - one allele comes from the mother, one from the father ...
Intro to Genetics - MacWilliams Biology
... c. Use only one letter per TRAIT uppercase letters for dominant traits lower case letters for recessive traits i.e. AA, Aa, aa (NOT AB) ...
... c. Use only one letter per TRAIT uppercase letters for dominant traits lower case letters for recessive traits i.e. AA, Aa, aa (NOT AB) ...
Inheritance - CCRI Faculty Web
... – an organism has two identical alleles at a gene locus • Heterozygous – an organism has two different alleles at a gene locus ...
... – an organism has two identical alleles at a gene locus • Heterozygous – an organism has two different alleles at a gene locus ...
genetics practice test
... phenotype for skin pigmentation, but both had one parent who was an albino. Albinism is an autosomal recessive trait. What is the probability that their first child will be albino? a. 1/8 ...
... phenotype for skin pigmentation, but both had one parent who was an albino. Albinism is an autosomal recessive trait. What is the probability that their first child will be albino? a. 1/8 ...
4.2 Patterns of heredity can be predicted
... Setting up and using a Punnett square is quite simple once you understand how it works. You begin by drawing a grid of perpendicular lines: Next, you put the genotype of one parent across the top and that of the other parent down the left side. For example, if parent pea plant genotypes were YY and ...
... Setting up and using a Punnett square is quite simple once you understand how it works. You begin by drawing a grid of perpendicular lines: Next, you put the genotype of one parent across the top and that of the other parent down the left side. For example, if parent pea plant genotypes were YY and ...
Document
... 1. Sometimes 2 parents do not have a disorder, but have a child with it. These parents are known as ______________ and the disease would have to be _____________________. Show the punnet square for Cystic Fibrosis in question 1 using the letter C. ...
... 1. Sometimes 2 parents do not have a disorder, but have a child with it. These parents are known as ______________ and the disease would have to be _____________________. Show the punnet square for Cystic Fibrosis in question 1 using the letter C. ...
Patterns of Inheritance
... – Crossing true-breeding tall and short (P) = only tall (F1) – Cross any resulting tall hybrids (F1) = 3:1 ratio (type of ratio?) of tall to short (F2) – Short phenotype disappears but reappears in next ...
... – Crossing true-breeding tall and short (P) = only tall (F1) – Cross any resulting tall hybrids (F1) = 3:1 ratio (type of ratio?) of tall to short (F2) – Short phenotype disappears but reappears in next ...
File
... What did Mendel conclude determines biological inheritance? Describe how Mendel cross-pollinated pea plants. Why did only about one fourth of Mendel’s F2 plants exhibit the recessive trait? Describe the P, F1, and F2 generations. Where do each come from? What is probability? How are the principles o ...
... What did Mendel conclude determines biological inheritance? Describe how Mendel cross-pollinated pea plants. Why did only about one fourth of Mendel’s F2 plants exhibit the recessive trait? Describe the P, F1, and F2 generations. Where do each come from? What is probability? How are the principles o ...
Name - Net Start Class
... 5th Grading Period Review Answer Key 1. Gregor Mendel studied pea plants in his garden during the 1800s. He is known as the Father of GENTICS. TT ...
... 5th Grading Period Review Answer Key 1. Gregor Mendel studied pea plants in his garden during the 1800s. He is known as the Father of GENTICS. TT ...
Mendelian Genetics
... same characteristics from both parents. A hybrid individual receives different forms of a trait from each parent. ...
... same characteristics from both parents. A hybrid individual receives different forms of a trait from each parent. ...
Name: Date: ______ Mendel`s Work Gregor Mendel was curious
... Pea plants are useful for studying heredity because they have many traits that exist in only two forms. They also produce large numbers of offspring, making it easy to collect large amounts of data. Their flower structure makes it easy to set up crosses between specific plants. Mendel crossed two pe ...
... Pea plants are useful for studying heredity because they have many traits that exist in only two forms. They also produce large numbers of offspring, making it easy to collect large amounts of data. Their flower structure makes it easy to set up crosses between specific plants. Mendel crossed two pe ...
Genetics Terms You’ve Gotta Know
... Homozygous: two alleles for a gene that are the SAME Heterozygous: two alleles for a gene that are DIFFERENT You get one allele from your mom and one from your dad. If you get the same from your mom and dad, you are homozygous for that trait. If your mom gave you a different allele than your ...
... Homozygous: two alleles for a gene that are the SAME Heterozygous: two alleles for a gene that are DIFFERENT You get one allele from your mom and one from your dad. If you get the same from your mom and dad, you are homozygous for that trait. If your mom gave you a different allele than your ...
Name - hooferv
... a. green peas if it also has a dominant allele for yellow peas. b. both green peas and yellow peas if it also has a dominant allele for yellow peas. c. green peas if it does not also have a dominant allele for yellow peas. d. yellow peas if it does not also have a dominant allele for green peas. ___ ...
... a. green peas if it also has a dominant allele for yellow peas. b. both green peas and yellow peas if it also has a dominant allele for yellow peas. c. green peas if it does not also have a dominant allele for yellow peas. d. yellow peas if it does not also have a dominant allele for green peas. ___ ...
Genetics - Currituck County Schools
... II. Pea Plant Experiments (Monohybrid Cross) • Mendel crossed short plant with tall plant (P Generation). • ALL offspring (hybrids) were tall. (F1 Generation) • 2nd Generation (F2) – tall plants from 1st generation to self-pollinate ...
... II. Pea Plant Experiments (Monohybrid Cross) • Mendel crossed short plant with tall plant (P Generation). • ALL offspring (hybrids) were tall. (F1 Generation) • 2nd Generation (F2) – tall plants from 1st generation to self-pollinate ...
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.