Chapter 12 Patterns of Inheritance
... 1) Traits are determined by pairs of discrete physical units • Physical units = genes • One allele of each gene / homologous chromosome 2) Alleles of a gene segregate from one another during meiosis • Law of Segregation • Which allele enters which gamete occurs by chance 3) Differing alleles can mas ...
... 1) Traits are determined by pairs of discrete physical units • Physical units = genes • One allele of each gene / homologous chromosome 2) Alleles of a gene segregate from one another during meiosis • Law of Segregation • Which allele enters which gamete occurs by chance 3) Differing alleles can mas ...
or Rr
... are only found in males, never in females. • The father’s traits are passed to all sons. • Dominance is irrelevant: there is only 1 copy of each Y-linked gene (hemizygous). ...
... are only found in males, never in females. • The father’s traits are passed to all sons. • Dominance is irrelevant: there is only 1 copy of each Y-linked gene (hemizygous). ...
Directional selection.
... Nevertheless, even though these calculations emphasize the importance of drift, directional selection often determines the ultimate fate of mutations. It is important in two general ways: it promotes the fixation of advantageous mutations that lead to greater fitness or adaptation to a new environme ...
... Nevertheless, even though these calculations emphasize the importance of drift, directional selection often determines the ultimate fate of mutations. It is important in two general ways: it promotes the fixation of advantageous mutations that lead to greater fitness or adaptation to a new environme ...
Pedigree - Solon City Schools
... • If a female has a mitochondrial trait, all of her offspring inherit it. • If a male has a mitochondrial trait, none of his offspring inherit it. • Note that only 1 allele is present in each individual, so dominance is not an issue. ...
... • If a female has a mitochondrial trait, all of her offspring inherit it. • If a male has a mitochondrial trait, none of his offspring inherit it. • Note that only 1 allele is present in each individual, so dominance is not an issue. ...
Observing Patterns in Inherited Traits
... Not all traits appear in Mendelian inheritance patterns • An allele may be partly dominant over a nonidentical partner, or codominant with it • Multiple genes may influence a trait; some genes influence many traits • The environments also influences gene expression ...
... Not all traits appear in Mendelian inheritance patterns • An allele may be partly dominant over a nonidentical partner, or codominant with it • Multiple genes may influence a trait; some genes influence many traits • The environments also influences gene expression ...
the steps when interpreting a pedigree chart
... • autosomal dominant – A genetic trait that is passed from generation to generation to generation, from both fathers to daughters and mothers to daughters, is typically autosomal dominant. ...
... • autosomal dominant – A genetic trait that is passed from generation to generation to generation, from both fathers to daughters and mothers to daughters, is typically autosomal dominant. ...
Chromosome Mutations
... Some general rules for identifying whether a disorder is autosomal dominant: 1. At least 1 parent must have the disorder to pass it on. The other parent may or may not have the disorder. 2. If both parents have the disorder, but are both heterozygous the child may or may not get the disorder. Some ...
... Some general rules for identifying whether a disorder is autosomal dominant: 1. At least 1 parent must have the disorder to pass it on. The other parent may or may not have the disorder. 2. If both parents have the disorder, but are both heterozygous the child may or may not get the disorder. Some ...
1 Chapter 14: Mendel and the Gene Idea Mendelian Genetics
... - An organism has 2 alleles for each inherited trait, one received from each parent - For example, there can be 2 alleles for the height of a plant: tall and short An allele can be dominant or recessive. - Dominant: an allele that masks the presence of a recessive allele of the same gene in a hetero ...
... - An organism has 2 alleles for each inherited trait, one received from each parent - For example, there can be 2 alleles for the height of a plant: tall and short An allele can be dominant or recessive. - Dominant: an allele that masks the presence of a recessive allele of the same gene in a hetero ...
Document
... Genetic drift = the alteration of the gene pool of a small population due to chance. Two factors may cause genetic drift: a) Bottleneck effect may lead to reduced genetic variability following some large disturbance that removes a large portion of the population. The surviving population often does ...
... Genetic drift = the alteration of the gene pool of a small population due to chance. Two factors may cause genetic drift: a) Bottleneck effect may lead to reduced genetic variability following some large disturbance that removes a large portion of the population. The surviving population often does ...
Sex linked inheritance, sex linkage in Drosophila and man, XO, XY
... typically show the following patterns in pedigrees: ...
... typically show the following patterns in pedigrees: ...
Genetics review
... If females have an XX genotype and can only give X genes, which parent is the one that determines whether the baby is a boy or ...
... If females have an XX genotype and can only give X genes, which parent is the one that determines whether the baby is a boy or ...
Lab 8: Genetics
... gametes, to the offspring. Recall that genes on maternal and paternal chromosomes are present in pairs in each individual, and that maternal and paternal chromosomes segregate as gametes (egg and sperm) are produced by Meiosis. Therefore, it is equally likely that our secondary eggs or sperm will re ...
... gametes, to the offspring. Recall that genes on maternal and paternal chromosomes are present in pairs in each individual, and that maternal and paternal chromosomes segregate as gametes (egg and sperm) are produced by Meiosis. Therefore, it is equally likely that our secondary eggs or sperm will re ...
Punnett Square Notes
... 1. A Punnett Square is a grid for organizing genetic information. It is VERY similar to how you predict probability. 2. A Punnett Square indicates the PROBABILITY of what the offspring from two individuals will look like. 3. What are the possibilities of the offspring between two hybrid tall pea pla ...
... 1. A Punnett Square is a grid for organizing genetic information. It is VERY similar to how you predict probability. 2. A Punnett Square indicates the PROBABILITY of what the offspring from two individuals will look like. 3. What are the possibilities of the offspring between two hybrid tall pea pla ...
Family Pedigree Project:
... Indicate people with the recessive form of the trait (shaded), carriers and people with the dominant form of trait Create a Punnett square of 2 people with known genotypes from your pedigree. List the genotypic and phenotypic ratios/percentages. Indicate the genotype of each person (If there are sev ...
... Indicate people with the recessive form of the trait (shaded), carriers and people with the dominant form of trait Create a Punnett square of 2 people with known genotypes from your pedigree. List the genotypic and phenotypic ratios/percentages. Indicate the genotype of each person (If there are sev ...
Problem set 1 answer key
... pigmentation is determined by the A allele. A normal-colored female snake is involved in a test cross. This cross produces 10 normal-colored snakes and 11 albino offspring. What are the genotypes of the parents and the offspring? The normal-colored female must be heterozygous (Aa) and by definition ...
... pigmentation is determined by the A allele. A normal-colored female snake is involved in a test cross. This cross produces 10 normal-colored snakes and 11 albino offspring. What are the genotypes of the parents and the offspring? The normal-colored female must be heterozygous (Aa) and by definition ...
Easter School Life Sciences Grade 12 Genetics: Mendel`s Laws 27
... Genetics is a science and specific terms are used. Make sure that you know and understand the following terms before you continue. Terminology & definitions: Allele: one of two contrasting genes that determine alternative characteristics in inheritance because they are situated on the same locus i ...
... Genetics is a science and specific terms are used. Make sure that you know and understand the following terms before you continue. Terminology & definitions: Allele: one of two contrasting genes that determine alternative characteristics in inheritance because they are situated on the same locus i ...
Name Date ______ Mrs. Geithner-Marron (Biology200) Period
... 5. Continue until there are no more beans in the bag. 6. For each cup (FF, Ff, & ff), count how many pairs of beans you have & write the number of pairs in the correct column (FF, Ff, & ff) in the row next to "generation 1". 7. IMPORTANT!!! The ff bunnies are born furless. The cold weather kills the ...
... 5. Continue until there are no more beans in the bag. 6. For each cup (FF, Ff, & ff), count how many pairs of beans you have & write the number of pairs in the correct column (FF, Ff, & ff) in the row next to "generation 1". 7. IMPORTANT!!! The ff bunnies are born furless. The cold weather kills the ...
NATURAL POPULATIONS OF DROSOPHZLA PSEUDOOBSCURAl
... as far south as Bogot6, Colombia. D.pseudoobscura is genetically well known, at least to the extent of having marker genes and inversions on all of its four major chromosomes, and there exists a vast literature on the population genetics of the inversion systems on chromosome 3 of this species by DO ...
... as far south as Bogot6, Colombia. D.pseudoobscura is genetically well known, at least to the extent of having marker genes and inversions on all of its four major chromosomes, and there exists a vast literature on the population genetics of the inversion systems on chromosome 3 of this species by DO ...
But what are genomic (additive) relationships?
... • Explain why “all genomic relationships are equal” ...
... • Explain why “all genomic relationships are equal” ...
Nerve activates contraction
... advantages for genetics. Many phenotypes (physical traits) Can control fertilization Short lifecycle ...
... advantages for genetics. Many phenotypes (physical traits) Can control fertilization Short lifecycle ...
Complex Patterns of Inheritance
... Example: Yy or RR 2. What term refers to the gene that is NOT expressed when two different genes for a trait are present in a gene pair? 4. What type of pollination occurs when pollen from the stamen on one flower is transferred to the pistil on a flower on a different plant? 5. Identify each gene p ...
... Example: Yy or RR 2. What term refers to the gene that is NOT expressed when two different genes for a trait are present in a gene pair? 4. What type of pollination occurs when pollen from the stamen on one flower is transferred to the pistil on a flower on a different plant? 5. Identify each gene p ...
punnett square review
... Standardized Test Prep A researcher studying fruit flies finds a mutant fly with brown-colored eyes. Almost all fruit flies in nature have bright red eyes. When the researcher crosses the mutant fly with a normal red-eyed fly, all the F1 offspring have red eyes. The researcher then crosses two of t ...
... Standardized Test Prep A researcher studying fruit flies finds a mutant fly with brown-colored eyes. Almost all fruit flies in nature have bright red eyes. When the researcher crosses the mutant fly with a normal red-eyed fly, all the F1 offspring have red eyes. The researcher then crosses two of t ...