ANSWERS - midterm study guide
... 12. What is a carrier? ______________________________________ Give an example of the genotype of a carrier.___ 13. What disease does someone have if they have Trisomy 21. ______________________________________________ What causes it? (Think about meiosis.) ___________________________________________ ...
... 12. What is a carrier? ______________________________________ Give an example of the genotype of a carrier.___ 13. What disease does someone have if they have Trisomy 21. ______________________________________________ What causes it? (Think about meiosis.) ___________________________________________ ...
Biology 303 EXAM II 3/14/00 NAME
... 3. in a bidirectional fashion between two cells. 4. from one bacterium to another. ...
... 3. in a bidirectional fashion between two cells. 4. from one bacterium to another. ...
Unit 4-notes File
... 1. Binary fission is carried out by many unicellular organisms such as amoebas and bacteria. In this form the parent replicates its DNA and other cellular materials and divides into two parts (mitosis) which are the offspring. This type of reproduction can result in extremely fast reproduction. Ex. ...
... 1. Binary fission is carried out by many unicellular organisms such as amoebas and bacteria. In this form the parent replicates its DNA and other cellular materials and divides into two parts (mitosis) which are the offspring. This type of reproduction can result in extremely fast reproduction. Ex. ...
Inheritance Patterns in Dragons
... segment of the long DNA molecule. Different genes may be different lengths. Each gene is a code for how a certain molecule can be made. The molecules produced by the genes can generally be sorted into two different types: ones that run the chemical reactions in your body, and ones that will be the s ...
... segment of the long DNA molecule. Different genes may be different lengths. Each gene is a code for how a certain molecule can be made. The molecules produced by the genes can generally be sorted into two different types: ones that run the chemical reactions in your body, and ones that will be the s ...
Purpose (Optional story)
... segment of the long DNA molecule. Different genes may be different lengths. Each gene is a code for how a certain molecule can be made. The molecules produced by the genes can generally be sorted into two different types: ones that run the chemical reactions in your body, and ones that will be the s ...
... segment of the long DNA molecule. Different genes may be different lengths. Each gene is a code for how a certain molecule can be made. The molecules produced by the genes can generally be sorted into two different types: ones that run the chemical reactions in your body, and ones that will be the s ...
Mendel’s Laws and Punnett Square Notes
... Meiosis - Process by which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell; Haploid (N) gamete cells are produced from diploid (2N) cells. ...
... Meiosis - Process by which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell; Haploid (N) gamete cells are produced from diploid (2N) cells. ...
Biology Assessment #3:
... 4. How does sexual reproduction increase variation within a species? 5. Why is there little variation in asexually reproducing organisms? 6. Identify the number of chromosomes in human haploid cells, diploid cells, sex cells, gametes, and somatic cells. 7. What is the meaning of n and 2n? 8. How is ...
... 4. How does sexual reproduction increase variation within a species? 5. Why is there little variation in asexually reproducing organisms? 6. Identify the number of chromosomes in human haploid cells, diploid cells, sex cells, gametes, and somatic cells. 7. What is the meaning of n and 2n? 8. How is ...
Variation and Selection
... to produce more cells, the number of cells carrying the new form increase. uncontrollable Mutations that occur in body cells can cause __________ cell division, resulting in cancer. Most mutations are ___________. However, they also play a part in how harmful species ________. evolve Changing by acq ...
... to produce more cells, the number of cells carrying the new form increase. uncontrollable Mutations that occur in body cells can cause __________ cell division, resulting in cancer. Most mutations are ___________. However, they also play a part in how harmful species ________. evolve Changing by acq ...
GA Milestone Review 1 1 Carbon dioxide and water are converted
... A) stored for later use. B) released for immediate use. C) absorbed from food or sunlight. D) transformed into an electromagnetic wave. ...
... A) stored for later use. B) released for immediate use. C) absorbed from food or sunlight. D) transformed into an electromagnetic wave. ...
Mrs. Sevgi
... Meiosis is essential for sexual reproduction and therefore occurs in all eukaryotes (including single-celled organisms) that reproduce sexually. A few eukaryotes, notably the Bdelloid rotifers, have lost the ability to carry out meiosis and have acquired the ability to reproduce by parthenogenesis. ...
... Meiosis is essential for sexual reproduction and therefore occurs in all eukaryotes (including single-celled organisms) that reproduce sexually. A few eukaryotes, notably the Bdelloid rotifers, have lost the ability to carry out meiosis and have acquired the ability to reproduce by parthenogenesis. ...
Synthesizing double haploid hexaploid wheat populations based on
... transfer from, such as Ae. tauschii, or one that induces alien chromosome elimination in interspecific hybrids, such as maize. Obviously, two key factors determine the success of the synthesis method: meiotic restitution and interspecific hybridization. A large interspecific F1 hybrids is necessary ...
... transfer from, such as Ae. tauschii, or one that induces alien chromosome elimination in interspecific hybrids, such as maize. Obviously, two key factors determine the success of the synthesis method: meiotic restitution and interspecific hybridization. A large interspecific F1 hybrids is necessary ...
Chromosomal Basis of Inheritance
... heritable factors Several characteristics make fruit flies a convenient ...
... heritable factors Several characteristics make fruit flies a convenient ...
Hair: Curly or Straight?
... alleles that the organism possesses, but whose trait is not affected by if a dominant allele is present. But if two recessive alleles are present, the recessive trait is guaranteed to show up, as there is no dominant allele to mask the recessive allele. Although this is usually the case, there are a ...
... alleles that the organism possesses, but whose trait is not affected by if a dominant allele is present. But if two recessive alleles are present, the recessive trait is guaranteed to show up, as there is no dominant allele to mask the recessive allele. Although this is usually the case, there are a ...
DNA Study Guide CP2015
... Complete the following multiple-choice questions. As we go over the correct responses, make notes for yourself about the question below it. ______1. The cells that make up the skin of an individual have some functions different from the cells that make up the liver because a. all cells have a common ...
... Complete the following multiple-choice questions. As we go over the correct responses, make notes for yourself about the question below it. ______1. The cells that make up the skin of an individual have some functions different from the cells that make up the liver because a. all cells have a common ...
DNA Reccombination
... described a mechanism of DNA-strand exchange that attempted to explain geneconversion events that occur during meiosis in fungi. That model first proposed in 1964 and is now known as the Holliday Junction. In 1975 he suggested that DNA methylation could be an important mechanism for the control of g ...
... described a mechanism of DNA-strand exchange that attempted to explain geneconversion events that occur during meiosis in fungi. That model first proposed in 1964 and is now known as the Holliday Junction. In 1975 he suggested that DNA methylation could be an important mechanism for the control of g ...
Chromosome
... • Genes on the X chromosome are called “sex-linked”, because they expressed more often in males than in females • There are very few genes on the Y chromosome. • Since males only have one X chromosome, all genes on it, whether dominant or recessive, are expressed. • In contrast, a mutant gene on an ...
... • Genes on the X chromosome are called “sex-linked”, because they expressed more often in males than in females • There are very few genes on the Y chromosome. • Since males only have one X chromosome, all genes on it, whether dominant or recessive, are expressed. • In contrast, a mutant gene on an ...
Biology
... 3. predict the possible offspring phenotypic and genotypic ratios from a cross using a Punnett square 4. summarize how the process of meiosis produces genetic recombination 5. explain how gene linkage can be used to create chromosome maps 6. analyze why polyploidy is important to the field of agricu ...
... 3. predict the possible offspring phenotypic and genotypic ratios from a cross using a Punnett square 4. summarize how the process of meiosis produces genetic recombination 5. explain how gene linkage can be used to create chromosome maps 6. analyze why polyploidy is important to the field of agricu ...
Block I Study questions
... What is meiosis? Draw the end result of meiosis. How are sex chromosomes made? In meiosis for humans, how many total chromosomes are produced in all 4 sex cells? 5) If long tails are a sex-linked trait, and mostly males have it, on which chromosome will it most likely be on? 6) Is colorblindness rec ...
... What is meiosis? Draw the end result of meiosis. How are sex chromosomes made? In meiosis for humans, how many total chromosomes are produced in all 4 sex cells? 5) If long tails are a sex-linked trait, and mostly males have it, on which chromosome will it most likely be on? 6) Is colorblindness rec ...
Biology EOC Review Sheet 1 Supernavage 2012
... Bacteria are simple prokaryotes with no membrane-bound organelles. Mammals nurse their young and are placental. Leaves are the main site for photosynthesis. If two individuals have same phenotype for a trait but different genotype, it is because one is homozygous dominant (TT) and the other ...
... Bacteria are simple prokaryotes with no membrane-bound organelles. Mammals nurse their young and are placental. Leaves are the main site for photosynthesis. If two individuals have same phenotype for a trait but different genotype, it is because one is homozygous dominant (TT) and the other ...
Unit 3
... Incomplete dominance is when the F1 hybrids have an appearance somewhere in between the phenotypes of the two parental varieties. For instance, when red snapdragons are crossed with whit , all the F1 hybrids have pink flowers. We should not regard incomplete dominance as evidence of the blending the ...
... Incomplete dominance is when the F1 hybrids have an appearance somewhere in between the phenotypes of the two parental varieties. For instance, when red snapdragons are crossed with whit , all the F1 hybrids have pink flowers. We should not regard incomplete dominance as evidence of the blending the ...
Human Inheritance
... Individuals with the normal genotype do not have the sickle cell allele and produce only normal hemoglobin. 2. SS Sickle Cell Anemia Produce abnormal hemoglobin that causes the red blood cells to “sickle” when oxygen availability is decreased; for example, in high altitudes or during periods o ...
... Individuals with the normal genotype do not have the sickle cell allele and produce only normal hemoglobin. 2. SS Sickle Cell Anemia Produce abnormal hemoglobin that causes the red blood cells to “sickle” when oxygen availability is decreased; for example, in high altitudes or during periods o ...
Pediatrics-Embryology
... i. The allantois forms- has a respiratory function and acts as a storage sac for urine during embryonic life i. The placenta take over its function very rapidly and the allantois becomes the urachus which ultimately becomes the median umbilical ligament ii. The blood vessels of the allantois become ...
... i. The allantois forms- has a respiratory function and acts as a storage sac for urine during embryonic life i. The placenta take over its function very rapidly and the allantois becomes the urachus which ultimately becomes the median umbilical ligament ii. The blood vessels of the allantois become ...
document
... roadblocks for new theories of the origin of life. • Monod wrote a book “Chance and Necessity”. • He first created a problem by stating that organisms have purpose or “teleonomy”. He then stated that variation had to arise on top of a stationary state. • He also pointed to the chicken and egg situat ...
... roadblocks for new theories of the origin of life. • Monod wrote a book “Chance and Necessity”. • He first created a problem by stating that organisms have purpose or “teleonomy”. He then stated that variation had to arise on top of a stationary state. • He also pointed to the chicken and egg situat ...
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.