BIO 170 General Biology I
... e. They are all acceptable 9) Which is true about a population a. They can be dispersed over several continents b. They may be composed of numerous species c. They are alive at the same time d. All of the above 10) Which of the following lends evidence for evolution a. Fossils b. Homology c. Biogeog ...
... e. They are all acceptable 9) Which is true about a population a. They can be dispersed over several continents b. They may be composed of numerous species c. They are alive at the same time d. All of the above 10) Which of the following lends evidence for evolution a. Fossils b. Homology c. Biogeog ...
Bio 102 Practice Problems Chromosomes, Karyotyping and Sex Linkage
... 6. A yellow-bodied male fruit fly from a pure-breeding line is crossed with a normal female (also purebreeding). What genotypes and phenotypes will you expect in the F1 and F2 generations if the recessive yellow-body phenotype is due to an autosomal gene? What will you expect if the gene is sex-link ...
... 6. A yellow-bodied male fruit fly from a pure-breeding line is crossed with a normal female (also purebreeding). What genotypes and phenotypes will you expect in the F1 and F2 generations if the recessive yellow-body phenotype is due to an autosomal gene? What will you expect if the gene is sex-link ...
Inner Ear Disorders
... Trait for HL is expressed in the presence of a single X chromosome Occurs more in males because they have single X males have a single x chromosome females have 2 copies of the x chromosome ...
... Trait for HL is expressed in the presence of a single X chromosome Occurs more in males because they have single X males have a single x chromosome females have 2 copies of the x chromosome ...
1. Which of the following statements about homologous
... Boys can inherit the recessive allele (c) that causes red-green colour blindness from their mother, not from their father. The allele for normal red and green vision is C. Which of the following genotypes are possible in men? A. ...
... Boys can inherit the recessive allele (c) that causes red-green colour blindness from their mother, not from their father. The allele for normal red and green vision is C. Which of the following genotypes are possible in men? A. ...
Bickering Genes Shape Evolution
... this case, general health seems to be secondPardo-Manuel de Villena, Sapienza, and chromosome numbers now range from 22 ary. Instead, this preference seems to have colleagues have begun to focus on a chro- to 28. When those with 22 breed with mice evolved in reaction to a selfish gene. Meiotic mosom ...
... this case, general health seems to be secondPardo-Manuel de Villena, Sapienza, and chromosome numbers now range from 22 ary. Instead, this preference seems to have colleagues have begun to focus on a chro- to 28. When those with 22 breed with mice evolved in reaction to a selfish gene. Meiotic mosom ...
Linked Genes and Crossing Over
... not always occur when examining some traits. When he mated wild type ( gray body and normal wings) with a double mutant type (black body and vestigal wings(stumpy)), all of the offspring had normal body and wing type. Then he mated the dihybrids with a double mutant male (this was really a test cros ...
... not always occur when examining some traits. When he mated wild type ( gray body and normal wings) with a double mutant type (black body and vestigal wings(stumpy)), all of the offspring had normal body and wing type. Then he mated the dihybrids with a double mutant male (this was really a test cros ...
Evolution
... Genetic changes can result from gene recombination during gamete formation and from mutations. These events are responsible for variety and diversity within each species. Natural selection favors the organisms that are better suited to survive in a given environment. Those not well suited to the env ...
... Genetic changes can result from gene recombination during gamete formation and from mutations. These events are responsible for variety and diversity within each species. Natural selection favors the organisms that are better suited to survive in a given environment. Those not well suited to the env ...
Pedigrees and Sex-linked Traits
... Explain how pedigrees are used to study human traits Describe examples of the inheritance of human traits Explain how small changes in DNA cause genetic disorders ...
... Explain how pedigrees are used to study human traits Describe examples of the inheritance of human traits Explain how small changes in DNA cause genetic disorders ...
Chapter 14 Section 14_2 Human Genetic Disorders
... bacteria that causes typhoid fever, a disease that caused an epidemic 1,000 years ago in Europe ...
... bacteria that causes typhoid fever, a disease that caused an epidemic 1,000 years ago in Europe ...
Agents of Evolution - rosedale11universitybiology
... a. In-breeding b. Assortative mating 5. Natural Selection a. Stabilizing selection b. Directional selection c. Disruptive selection d. Sexual Selection 1. Mutations Mutations are only important to evolution if the mutated DNA is in a gamete and passed on to offspring. The new mutation may provide an ...
... a. In-breeding b. Assortative mating 5. Natural Selection a. Stabilizing selection b. Directional selection c. Disruptive selection d. Sexual Selection 1. Mutations Mutations are only important to evolution if the mutated DNA is in a gamete and passed on to offspring. The new mutation may provide an ...
Heredity Notes
... • “Females” produce sex cells called eggs – Half of the “mother’s” DNA is in this egg ...
... • “Females” produce sex cells called eggs – Half of the “mother’s” DNA is in this egg ...
Final Review Game
... A group of organisms that can mate with each other and produce fertile offspring is called a_____? ...
... A group of organisms that can mate with each other and produce fertile offspring is called a_____? ...
Midterm#1 comments#2 Overview- chapter 6 Crossing-over
... genes) at once, here vestigial, purple, and black • One parent will be heterozygous for 3 different genes (construct this genotype by breeding) • The other parent will be homozygous recessive for those same genes (find or construct this one too) • There are 2x2x2 =8 gametic genotypes that are possib ...
... genes) at once, here vestigial, purple, and black • One parent will be heterozygous for 3 different genes (construct this genotype by breeding) • The other parent will be homozygous recessive for those same genes (find or construct this one too) • There are 2x2x2 =8 gametic genotypes that are possib ...
Introduction Presentation
... genome (the full complement of DNA in an organism) direct cell function? • Specific portions of the DNA sequence - genes constitute a code for the production of proteins • protein molecules = strings of amino acids (n≈20) • proteins = structural elements, enzymes, other functions (>50% dry weight of ...
... genome (the full complement of DNA in an organism) direct cell function? • Specific portions of the DNA sequence - genes constitute a code for the production of proteins • protein molecules = strings of amino acids (n≈20) • proteins = structural elements, enzymes, other functions (>50% dry weight of ...
Macroevolution 3
... Review the concept of nondisjunction of chromosomes during meiosis. True polyploidy rarely occurs in humans, although it occurs in some tissues (especially in the liver). Aneuploidy is more common. Polyploidy occurs in humans in the form of triploidy, with 69 chromosomes (sometimes called 69,XXX), a ...
... Review the concept of nondisjunction of chromosomes during meiosis. True polyploidy rarely occurs in humans, although it occurs in some tissues (especially in the liver). Aneuploidy is more common. Polyploidy occurs in humans in the form of triploidy, with 69 chromosomes (sometimes called 69,XXX), a ...
Patterns of Inheritance
... In paternity lawsuits, blood typing often is used to provide genetic evidence that the alleged father could not be related to the child. For the following mother-child combinations, indicate which blood types could NOT have been the father’s: (1) Mother with O and child with B; (2) Mother with B and ...
... In paternity lawsuits, blood typing often is used to provide genetic evidence that the alleged father could not be related to the child. For the following mother-child combinations, indicate which blood types could NOT have been the father’s: (1) Mother with O and child with B; (2) Mother with B and ...
Non Mendelian Genetics
... Patterns of inheritance that do not follow Mendel’s laws are referred to as non-Mendelian. Mendelian laws describe the inheritance patterns for traits control by one gene on chromosomes inside the nucleus. Some inherited traits do not follow this pattern or the dominant/recessive pattern we have see ...
... Patterns of inheritance that do not follow Mendel’s laws are referred to as non-Mendelian. Mendelian laws describe the inheritance patterns for traits control by one gene on chromosomes inside the nucleus. Some inherited traits do not follow this pattern or the dominant/recessive pattern we have see ...
Genetic Mutations
... Monosomy refers to a condition in which there is one chromosome is missing. It is abbreviated 2N - 1. For example, monosomy X is a condition in which cells have only one X chromosome. A trisomy has one extra chromosome and is abbreviated 2N + 1. Trisomy 21 is an example of a trisomy in which cells h ...
... Monosomy refers to a condition in which there is one chromosome is missing. It is abbreviated 2N - 1. For example, monosomy X is a condition in which cells have only one X chromosome. A trisomy has one extra chromosome and is abbreviated 2N + 1. Trisomy 21 is an example of a trisomy in which cells h ...
Human Genetics
... one cell with too few chromosomes and one cell with too many. Triploids develop from the fertilization of an abnormal diploid egg, produced from the nondisjunction of all chromosomes. Tetraploids develop from the failure of a 2n zygote to divide after replicating its chromosomes, subsequent mitosis ...
... one cell with too few chromosomes and one cell with too many. Triploids develop from the fertilization of an abnormal diploid egg, produced from the nondisjunction of all chromosomes. Tetraploids develop from the failure of a 2n zygote to divide after replicating its chromosomes, subsequent mitosis ...
Cell Division Study Guide
... 13. Explain how skin cells and liver cells differ in terms of the rate at which they complete the cell cycle. ...
... 13. Explain how skin cells and liver cells differ in terms of the rate at which they complete the cell cycle. ...
file - MabryOnline.org
... a. to identify the DNA sequence of every gene in the human genome b. to clone every gene on a single chromosome in human DNA c. to splice every gene on a single chromosome in human DNA d. to inbreed the best genes on every chromosome in human DNA ...
... a. to identify the DNA sequence of every gene in the human genome b. to clone every gene on a single chromosome in human DNA c. to splice every gene on a single chromosome in human DNA d. to inbreed the best genes on every chromosome in human DNA ...
mendel trg - mhs
... 7. Explain the difference between parental type and recombinant type chromosomes. Draw a diagram that illustrates the difference between the two. 8. Explain how crossing over can unlink genes. 9. Describe how sex is determined in humans and how the SRY gene plays a role in sex determination. 10. Des ...
... 7. Explain the difference between parental type and recombinant type chromosomes. Draw a diagram that illustrates the difference between the two. 8. Explain how crossing over can unlink genes. 9. Describe how sex is determined in humans and how the SRY gene plays a role in sex determination. 10. Des ...
Notes - Dr. Bruce Owen
... − when cell division is over, the chromosomes unravel, the DNA sprawls out through the nucleus, and it gets back to its normal role of guiding the production of proteins − except that now there are two cells with the same DNA instructions − this process is called mitosis: cell division that produces ...
... − when cell division is over, the chromosomes unravel, the DNA sprawls out through the nucleus, and it gets back to its normal role of guiding the production of proteins − except that now there are two cells with the same DNA instructions − this process is called mitosis: cell division that produces ...
B3 student checklist 2016
... Compare animal and plant cells with bacterial cells. Be able to list the differences between them in terms the arrangement of DNA. Dry mass is the best measure for growth. Advantages and disadvantages of measuring growth by length, wet mass and dry mass. Describe the main phases of human growth, exp ...
... Compare animal and plant cells with bacterial cells. Be able to list the differences between them in terms the arrangement of DNA. Dry mass is the best measure for growth. Advantages and disadvantages of measuring growth by length, wet mass and dry mass. Describe the main phases of human growth, exp ...
Polyploid
Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes. Most species whose cells have nuclei (Eukaryotes) are diploid, meaning they have two sets of chromosomes—one set inherited from each parent. However, polyploidy is found in some organisms and is especially common in plants. In addition, polyploidy occurs in some tissues of animals that are otherwise diploid, such as human muscle tissues. This is known as endopolyploidy. Species whose cells do not have nuclei, that is, Prokaryotes, may be polyploid organisms, as seen in the large bacterium Epulopicium fishelsoni [1]. Hence ploidy is defined with respect to a cell. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Male bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by meiosis.Polyploidy refers to a numerical change in a whole set of chromosomes. Organisms in which a particular chromosome, or chromosome segment, is under- or overrepresented are said to be aneuploid (from the Greek words meaning ""not"", ""good"", and ""fold""). Therefore the distinction between aneuploidy and polyploidy is that aneuploidy refers to a numerical change in part of the chromosome set, whereas polyploidy refers to a numerical change in the whole set of chromosomes.Polyploidy may occur due to abnormal cell division, either during mitosis, or commonly during metaphase I in meiosis.Polyploidy occurs in some animals, such as goldfish, salmon, and salamanders, but is especially common among ferns and flowering plants (see Hibiscus rosa-sinensis), including both wild and cultivated species. Wheat, for example, after millennia of hybridization and modification by humans, has strains that are diploid (two sets of chromosomes), tetraploid (four sets of chromosomes) with the common name of durum or macaroni wheat, and hexaploid (six sets of chromosomes) with the common name of bread wheat. Many agriculturally important plants of the genus Brassica are also tetraploids.Polyploidy can be induced in plants and cell cultures by some chemicals: the best known is colchicine, which can result in chromosome doubling, though its use may have other less obvious consequences as well. Oryzalin will also double the existing chromosome content.