Pre- and Posttest
... Answers may vary, but may be similar to the following: The traits of the offspring are the result of combining the chromosomes inherited from the parents. The traits of the offspring depend on whether the dominant or recessive alleles are passed from parents to offspring. 10. Explain how an offsprin ...
... Answers may vary, but may be similar to the following: The traits of the offspring are the result of combining the chromosomes inherited from the parents. The traits of the offspring depend on whether the dominant or recessive alleles are passed from parents to offspring. 10. Explain how an offsprin ...
Charles Darwin Notes
... • Survival of the Fittest/Natural Selection Fitness=able to survive and reproduce! • Descent with Modification The “fittest” reproduce thus passing on their GREAT traits! ...
... • Survival of the Fittest/Natural Selection Fitness=able to survive and reproduce! • Descent with Modification The “fittest” reproduce thus passing on their GREAT traits! ...
BIOLOGY I Study Guide # 5: Topic – Genetics 1 Name: Define:
... 15. The sequencing of human chromosomes 21 and 22 showed that a. some regions of chromosomes do not code for proteins. b. all of the DNA of chromosomes codes for proteins. c. different chromosomes have the same number of genes. 16. Which of the following form(s) a Barr body? a. the Y chromosome in a ...
... 15. The sequencing of human chromosomes 21 and 22 showed that a. some regions of chromosomes do not code for proteins. b. all of the DNA of chromosomes codes for proteins. c. different chromosomes have the same number of genes. 16. Which of the following form(s) a Barr body? a. the Y chromosome in a ...
Heredity PowerPoint
... would result in all being identical (All Dominant) • 3rd – the F2 generation would result in a 3:1 ratio (3 Dominant: 1 Recessive) ...
... would result in all being identical (All Dominant) • 3rd – the F2 generation would result in a 3:1 ratio (3 Dominant: 1 Recessive) ...
Allele Frequencies: Staying Constant
... • But it is still useful for many fields of genetics – know how and when to use it • Know how to calculate it for biallelic genes ...
... • But it is still useful for many fields of genetics – know how and when to use it • Know how to calculate it for biallelic genes ...
Allele Frequencies: Staying Constant
... • But it is still useful for many fields of genetics – know how and when to use it • Know how to calculate it for biallelic genes ...
... • But it is still useful for many fields of genetics – know how and when to use it • Know how to calculate it for biallelic genes ...
P Cross
... • Heterozygous: two different alleles (Aa) • Phenotype: Physical appearance • Genotype: Genetic make-up – Homozygous dominant (AA) – Homozygous recessive (aa) – Heterozygous (Aa) ...
... • Heterozygous: two different alleles (Aa) • Phenotype: Physical appearance • Genotype: Genetic make-up – Homozygous dominant (AA) – Homozygous recessive (aa) – Heterozygous (Aa) ...
Mendel and meiosis
... which is produced the male sex organ. The female gamete forms into a female sex organ. • Fertilization, when a male gamete unites with a female gamete • Zygote,-- is a fertilized cell. ...
... which is produced the male sex organ. The female gamete forms into a female sex organ. • Fertilization, when a male gamete unites with a female gamete • Zygote,-- is a fertilized cell. ...
genetics: typical test questions
... 1. In mitosis/meiosis, the haploid / diploid parent cell undergoes a process in which one /two/ four cells are produced that are smaller but identical to the parent cell. In mitosis/meiosis, the haploid /diploid parent cell undergoes a process in which one /two / four cells are produced that are not ...
... 1. In mitosis/meiosis, the haploid / diploid parent cell undergoes a process in which one /two/ four cells are produced that are smaller but identical to the parent cell. In mitosis/meiosis, the haploid /diploid parent cell undergoes a process in which one /two / four cells are produced that are not ...
Genetics – Test 2 - The Biology Corner
... 6. Hardy Weinberg Equation and Population Genetics (p 302) ...
... 6. Hardy Weinberg Equation and Population Genetics (p 302) ...
Genetics revision for learners
... Meiosis produces gametes with half the number of chromosomes. This means that pairs of alleles are separated at meiosis. During meiosis matching chromosomes cross over (swap sections of the chromosome) which adds variation. Independent assortment also increases variation as the chromosome pairs rand ...
... Meiosis produces gametes with half the number of chromosomes. This means that pairs of alleles are separated at meiosis. During meiosis matching chromosomes cross over (swap sections of the chromosome) which adds variation. Independent assortment also increases variation as the chromosome pairs rand ...
Evolution & Speciation
... • Random change in allele frequency causes an allele to become common ...
... • Random change in allele frequency causes an allele to become common ...
Dominant OR Recessive
... look like a combination of them and not your pet hamster. That is, unless your parents were hamsters! © Getting Nerdy, LLC ...
... look like a combination of them and not your pet hamster. That is, unless your parents were hamsters! © Getting Nerdy, LLC ...
Genetics PowerPoint
... provides clues about which chromosome contains the gene and precisely where it lies on that chromosome. ● Genetic maps have been used successfully to find the single gene responsible for relatively rare inherited disorders, like cystic fibrosis and muscular dystrophy. Maps have also become useful in ...
... provides clues about which chromosome contains the gene and precisely where it lies on that chromosome. ● Genetic maps have been used successfully to find the single gene responsible for relatively rare inherited disorders, like cystic fibrosis and muscular dystrophy. Maps have also become useful in ...
Biology - Chapter 7
... organism's appearance (recessive). 4. When gametes are formed, the alleles for each gene in an individual separate independently of one another. Thus, gametes carry only one allele for each inherited character. When gametes unite during fertilization, each gamete contributes its 1 allele. ...
... organism's appearance (recessive). 4. When gametes are formed, the alleles for each gene in an individual separate independently of one another. Thus, gametes carry only one allele for each inherited character. When gametes unite during fertilization, each gamete contributes its 1 allele. ...
Genetics Unit
... • 3) in the F1 generation, the tall factor was dominant (factor that is seen) • 4) In the F2 generation, the short factor or (t) produced 1 short plant So short is recessive (factor not seen) ...
... • 3) in the F1 generation, the tall factor was dominant (factor that is seen) • 4) In the F2 generation, the short factor or (t) produced 1 short plant So short is recessive (factor not seen) ...
Worksheet - Biology Junction
... Extending the Range of Mendelian Genetics 9. Explain the inheritance pattern of traits where more than two alleles for the trait exist. ...
... Extending the Range of Mendelian Genetics 9. Explain the inheritance pattern of traits where more than two alleles for the trait exist. ...
Biology II Unit 2: Evolution and Taxonomy Exam
... differences between the three paths of selection. Provide an example and description for bottleneck and founder effect. How are these two phenomena related to genetic drift? What is the difference between genetic drift and gene flow? Describe how population size is related to genetic drift. Provide ...
... differences between the three paths of selection. Provide an example and description for bottleneck and founder effect. How are these two phenomena related to genetic drift? What is the difference between genetic drift and gene flow? Describe how population size is related to genetic drift. Provide ...
Chapter 8: Foundations of Genetics
... •Mendel selected seven characteristics to study, each of which had two distinguishable traits •He let each variety self-fertilize for many generations to ensure it was true-breeding •He crossed individuals from two different varieties that differ in only one trait –P (parental) generation = Pure bre ...
... •Mendel selected seven characteristics to study, each of which had two distinguishable traits •He let each variety self-fertilize for many generations to ensure it was true-breeding •He crossed individuals from two different varieties that differ in only one trait –P (parental) generation = Pure bre ...
Pedigree Analysis
... • A pedigree chart shows the incidence of a certain condition as it goes through several generations ...
... • A pedigree chart shows the incidence of a certain condition as it goes through several generations ...
Genetics
... 41. In a small group of people living in a remote area, there is a high incidence of “blue skin,” a condition that results from a variation in the structure of hemoglobin. All of the “blue-skinned” residents can trace their ancestry to one couple, who were among the original settlers of this region. ...
... 41. In a small group of people living in a remote area, there is a high incidence of “blue skin,” a condition that results from a variation in the structure of hemoglobin. All of the “blue-skinned” residents can trace their ancestry to one couple, who were among the original settlers of this region. ...
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.