Lesson 3: How does children get traits that their parents do not have
... 10A. Discuss in your groups: Which model is better, based on the evidence so far. Give detailed reasons for your ideas during your discussion (use model evaluation stems). 10B. Then answer the following questions. Which evidence is the best evidence? Which evidence supports or contradicts both model ...
... 10A. Discuss in your groups: Which model is better, based on the evidence so far. Give detailed reasons for your ideas during your discussion (use model evaluation stems). 10B. Then answer the following questions. Which evidence is the best evidence? Which evidence supports or contradicts both model ...
Genetics Power Point
... by growing plants that were pure for each trait. Meaning that plants that are pure for each trait will only produce plants with that trait. Strains are plants that are pure for a specific trait. Mendel allowed plants to self-pollinate for several generations. Had 14 strains- 1 for each of the ...
... by growing plants that were pure for each trait. Meaning that plants that are pure for each trait will only produce plants with that trait. Strains are plants that are pure for a specific trait. Mendel allowed plants to self-pollinate for several generations. Had 14 strains- 1 for each of the ...
Name: AP Biology Driftworm Demo Evolution is the process by
... periods of time. It is responsible for both the remarkable similarities we see across all life and the amazing diversity of that life. Evolution is often described as "descent with modification." But what exactly is being modified? Evolution only occurs when there is a change in gene frequency withi ...
... periods of time. It is responsible for both the remarkable similarities we see across all life and the amazing diversity of that life. Evolution is often described as "descent with modification." But what exactly is being modified? Evolution only occurs when there is a change in gene frequency withi ...
natural selection
... provide a selective advantage that due to natural selection can lead to a shift in allele frequency. ...
... provide a selective advantage that due to natural selection can lead to a shift in allele frequency. ...
Genetics (20%) Sample Test Prep Questions
... Students know plant and animal cells contain many thousands of different genes and typically have two copies of every gene. The two copies (or alleles) of the gene may or may not be identical, and one may be dominant in determining the phenotype while the other is recessive. (pg. 107 Science Framewo ...
... Students know plant and animal cells contain many thousands of different genes and typically have two copies of every gene. The two copies (or alleles) of the gene may or may not be identical, and one may be dominant in determining the phenotype while the other is recessive. (pg. 107 Science Framewo ...
Unit 6: Genetics and Reproduction
... • Sometimes traits mix together to create a new allele. • In the picture above the red and white flower were crossed and a pink flower was created. ...
... • Sometimes traits mix together to create a new allele. • In the picture above the red and white flower were crossed and a pink flower was created. ...
Population Genetics and Patterns of Evolution
... • Evolution is change over time, which means it occurs within a group whose individuals are actually breeding with each other; • and therefore, we study evolution by examining genetic change within a population. • INDIVIDUALS do NOT EVOLVE, a population evolves. ...
... • Evolution is change over time, which means it occurs within a group whose individuals are actually breeding with each other; • and therefore, we study evolution by examining genetic change within a population. • INDIVIDUALS do NOT EVOLVE, a population evolves. ...
HRW BIO CRF Ch08_p01-66
... people with a family history of genetic disorders Gene therapy is a procedure that attempts to replace defective genes by inserting copies of healthy genes into an individual. ...
... people with a family history of genetic disorders Gene therapy is a procedure that attempts to replace defective genes by inserting copies of healthy genes into an individual. ...
Chapter 11 Mendelian Genetics
... patterns. Multifactorial inheritance controls some traits. Dominance, for example, can be complete or incomplete. Codominance can also exist among the offspring of a genetic cross. Genes for some traits have multiple alleles. Many traits are polygenic and are influenced by the environment. 11.1 – Gr ...
... patterns. Multifactorial inheritance controls some traits. Dominance, for example, can be complete or incomplete. Codominance can also exist among the offspring of a genetic cross. Genes for some traits have multiple alleles. Many traits are polygenic and are influenced by the environment. 11.1 – Gr ...
7.1 Chromosomes and Phenotype KEY CONCEPT affect the expression of traits.
... The chromosomes on which genes are located can affect the expression of traits. ...
... The chromosomes on which genes are located can affect the expression of traits. ...
Slide 1
... • Mendel discovered that a pea plant with purple flowers could have a genotype of either PP or Pp. • A pea plant with white flowers could only have a genotype of pp. • An organism’s genotype shows the alleles of a gene it contains. ...
... • Mendel discovered that a pea plant with purple flowers could have a genotype of either PP or Pp. • A pea plant with white flowers could only have a genotype of pp. • An organism’s genotype shows the alleles of a gene it contains. ...
Eye Color
... A pedigree is a chart that tells someone all of the possible known phenotypes. Phenotypes are physical traits you inherit from you parents. Genotype is internally coded inheritable information carried by a living organism. Recessive is when you produce little or no phenotype when occurring in hetero ...
... A pedigree is a chart that tells someone all of the possible known phenotypes. Phenotypes are physical traits you inherit from you parents. Genotype is internally coded inheritable information carried by a living organism. Recessive is when you produce little or no phenotype when occurring in hetero ...
Why are recessive disorders more common than dominant ones?
... • The odds of one carrier (1/23.6) marrying another carrier (1/23.6) is 1/500 • The occurrence of CF is about 1/2000 ...
... • The odds of one carrier (1/23.6) marrying another carrier (1/23.6) is 1/500 • The occurrence of CF is about 1/2000 ...
Genetics PowerPoint
... Mendel hypothesized that each trait is controlled by a “factor” 2 or more “factors” for each trait •Dominant-more powerful, always shows (R) •Recessive-weaker, sometimes shows (r) ...
... Mendel hypothesized that each trait is controlled by a “factor” 2 or more “factors” for each trait •Dominant-more powerful, always shows (R) •Recessive-weaker, sometimes shows (r) ...
Assignment 2
... Only when both A &B are carriers for the disease causing gene, their child would manifest the disease since LD is autosomal recessive. The chance of A being a carrier is 2/3. Chance of B being carrier is 1/2. And chance of their child being homozygous recessive is 1/4. Hence 2/3 x ½ x 1/4 = 1/12, as ...
... Only when both A &B are carriers for the disease causing gene, their child would manifest the disease since LD is autosomal recessive. The chance of A being a carrier is 2/3. Chance of B being carrier is 1/2. And chance of their child being homozygous recessive is 1/4. Hence 2/3 x ½ x 1/4 = 1/12, as ...
Mendelian Genetics
... Parents are AaBb X AABB Gametes AaBb = AB, Ab, aB, & ab; AABB= AB only Phenotypic ratio = all dominant, Genotypic ratio = 1:1:1:1 ...
... Parents are AaBb X AABB Gametes AaBb = AB, Ab, aB, & ab; AABB= AB only Phenotypic ratio = all dominant, Genotypic ratio = 1:1:1:1 ...
Document
... • Coupling (cis configuration): Wild type alleles are found on one chromosome; mutant alleles are found on the other chromosome. ...
... • Coupling (cis configuration): Wild type alleles are found on one chromosome; mutant alleles are found on the other chromosome. ...
Biology Final Exam 2011 Review - Dallastown Area School District
... b. A hybrid plant? c. Plants that have a tall phenotype. 10. If a man of blood type O marries a woman of blood type AB. What is the percent probability of the following blood types in their children: a. Type A b. Type O c. Type AB d. Type B 11. If Red, White and Pink flowers represents incomplete do ...
... b. A hybrid plant? c. Plants that have a tall phenotype. 10. If a man of blood type O marries a woman of blood type AB. What is the percent probability of the following blood types in their children: a. Type A b. Type O c. Type AB d. Type B 11. If Red, White and Pink flowers represents incomplete do ...
Unit 4 review questions
... 4. Understand how to construct a Punnett square and use it to predict genotypic and phenotypic ratios. 5. Define complete dominance, incomplete dominance, codominance, multiple alleles, pleiotropy, epistasis, and polygenic inheritance. 6. Explain how one allele can be dominant over another at the mo ...
... 4. Understand how to construct a Punnett square and use it to predict genotypic and phenotypic ratios. 5. Define complete dominance, incomplete dominance, codominance, multiple alleles, pleiotropy, epistasis, and polygenic inheritance. 6. Explain how one allele can be dominant over another at the mo ...
Document
... i. loss of variation per generation is 1-1/(2N). ii. Waiting time for random alleles to find a common ancestor is 2N. Factors that influences Ne: i. Variance in offspring. WF: 1. If variance is higher, then effective population size is smaller. ...
... i. loss of variation per generation is 1-1/(2N). ii. Waiting time for random alleles to find a common ancestor is 2N. Factors that influences Ne: i. Variance in offspring. WF: 1. If variance is higher, then effective population size is smaller. ...
Printable version
... Mendel explained his results by proposing the following 4-part hypothesis: 1)Each individual has two “hereditary factors” controlling a given trait. The pure-breeding purple parents have 2 hereditary factors for purple flowers (AA), and the pure-breeding white plants have 2 hereditary factors for wh ...
... Mendel explained his results by proposing the following 4-part hypothesis: 1)Each individual has two “hereditary factors” controlling a given trait. The pure-breeding purple parents have 2 hereditary factors for purple flowers (AA), and the pure-breeding white plants have 2 hereditary factors for wh ...
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.