Biology 1 Exam III F'04.doc
... 28) The human chromosomes which are not either the "X" or "Y" chromosomes are collectively called _________. a) mosaics b) sex chromosomes c) karyotypes d) monosomics e) autosomes 29) A human gene is said to be sex-linked if: a) it is more common in females than males. b) it is found on the ‘Y’ chr ...
... 28) The human chromosomes which are not either the "X" or "Y" chromosomes are collectively called _________. a) mosaics b) sex chromosomes c) karyotypes d) monosomics e) autosomes 29) A human gene is said to be sex-linked if: a) it is more common in females than males. b) it is found on the ‘Y’ chr ...
File
... 1) Do the offspring of two parents ever look exactly like either parent? Why not? No, because they are a combination of the genes from both parents and not from only one parent. 2) What type of organisms only reproduce asexually? Single-celled organisms. 3a) How similar are the offspring to the pare ...
... 1) Do the offspring of two parents ever look exactly like either parent? Why not? No, because they are a combination of the genes from both parents and not from only one parent. 2) What type of organisms only reproduce asexually? Single-celled organisms. 3a) How similar are the offspring to the pare ...
Chapter 4 Outline
... a. The sides of the ladder are made up of _________________________. b. The rungs of the ladder are made up of ________________________. 3. Before a cell divides, its DNA duplicates itself by unwinding and separating its ...
... a. The sides of the ladder are made up of _________________________. b. The rungs of the ladder are made up of ________________________. 3. Before a cell divides, its DNA duplicates itself by unwinding and separating its ...
Sources of Genetic Variation
... If the inverted segment includes the centromere, the inversion is called PERICENTRIC INVERSIONS, if not the inversion is PARACENTRIC INVERSIONS One consequence of inversions is that they often either prevent crossing over or result in the products of crossing being eliminated during meiosis (in the ...
... If the inverted segment includes the centromere, the inversion is called PERICENTRIC INVERSIONS, if not the inversion is PARACENTRIC INVERSIONS One consequence of inversions is that they often either prevent crossing over or result in the products of crossing being eliminated during meiosis (in the ...
genetic study guide/quiz
... 8. The only way to express a recessive trait is to have a _______________________ genotype. 9. A phenotype is _______________________________________. To name the phenotype, use the __________ from your punnett square. 10. Carrier means _______________________ genotype. 11. In sheep, black wool is d ...
... 8. The only way to express a recessive trait is to have a _______________________ genotype. 9. A phenotype is _______________________________________. To name the phenotype, use the __________ from your punnett square. 10. Carrier means _______________________ genotype. 11. In sheep, black wool is d ...
Genetics - broadus ffa
... Similar in their traits (color patterns, etc.). Embryo splitting tries to imitate this type of twin. If more than one egg is shed off the ovary at ovulation each egg Can be fertilized independently of the other. The type of twins produce By this process are called fraternal twins. They do not have t ...
... Similar in their traits (color patterns, etc.). Embryo splitting tries to imitate this type of twin. If more than one egg is shed off the ovary at ovulation each egg Can be fertilized independently of the other. The type of twins produce By this process are called fraternal twins. They do not have t ...
Lesson Plans
... Walter Sutton in the early 1900s. His group’s work not only established the chromosomal location of the genes, but also explained why the independent assortment of many genes (see Mendel’s work) applies only to genes that are located on different chromosomes. The emphasis of the student reading is t ...
... Walter Sutton in the early 1900s. His group’s work not only established the chromosomal location of the genes, but also explained why the independent assortment of many genes (see Mendel’s work) applies only to genes that are located on different chromosomes. The emphasis of the student reading is t ...
Lecture Powerpoint Here
... from several generations to increase the numbers for analysis • If a trait follows a simple Mendelian inheritance pattern they can be confident about predicting the probability of its showing up again ...
... from several generations to increase the numbers for analysis • If a trait follows a simple Mendelian inheritance pattern they can be confident about predicting the probability of its showing up again ...
Meiosis and Mendel`s Law of Segregation
... has two sets of chromosomes – one from each parent, first replicates its DNA and then undergoes two rounds of division to produce four haploid gametes. The resulting products of meiosis, or gametes, are haploid because each has only one set of chromosomes, and as a result, half the number of chromos ...
... has two sets of chromosomes – one from each parent, first replicates its DNA and then undergoes two rounds of division to produce four haploid gametes. The resulting products of meiosis, or gametes, are haploid because each has only one set of chromosomes, and as a result, half the number of chromos ...
Genetics: An Introduction
... History of Genetics People have known about inheritance for a long ...
... History of Genetics People have known about inheritance for a long ...
Meiosis - Lamont High
... • This process is known as synapsis • During this time the chromosomes are so close together that crossing over can occur • This leads to genetic variation since sections of the DNA are exchanged mixing maternal and paternal genes ...
... • This process is known as synapsis • During this time the chromosomes are so close together that crossing over can occur • This leads to genetic variation since sections of the DNA are exchanged mixing maternal and paternal genes ...
Unit 8 PowerPoint
... Checking in 1: 1. A picture of a person's chromosomes is called a _____. 2. In this pictures, chromosomes are arranged in pairs according to their ___________. 3. Humans have ______ pairs of chromosomes. 4. The last set of chromosomes is the _____ chromosomes. 5. Males have what sex chromosomes? ...
... Checking in 1: 1. A picture of a person's chromosomes is called a _____. 2. In this pictures, chromosomes are arranged in pairs according to their ___________. 3. Humans have ______ pairs of chromosomes. 4. The last set of chromosomes is the _____ chromosomes. 5. Males have what sex chromosomes? ...
Mendel`s Contributions
... When a cell is dividing, DNA winds up tightly and forms chromosomes in the nucleus of the cell. The genes are contained within the chromosome. ...
... When a cell is dividing, DNA winds up tightly and forms chromosomes in the nucleus of the cell. The genes are contained within the chromosome. ...
Chapter 10 Review
... 32. A dog’s phenotype can be determined by A. Looking at the dog’s parents B. Examining the dog’s chromosomes C. Mating the dog and examining its ...
... 32. A dog’s phenotype can be determined by A. Looking at the dog’s parents B. Examining the dog’s chromosomes C. Mating the dog and examining its ...
Mitosis
... 20. If a pea plant that is heterozygous for round, yellow peas (RrYy) is crossed with a pea plant that is homozygous for round peas but heterozygous for yellow peas (RRYy), how many different kinds of phenotypes are their offspring expected to show?2 21. Incomplete dominance is when one allele is no ...
... 20. If a pea plant that is heterozygous for round, yellow peas (RrYy) is crossed with a pea plant that is homozygous for round peas but heterozygous for yellow peas (RRYy), how many different kinds of phenotypes are their offspring expected to show?2 21. Incomplete dominance is when one allele is no ...
File
... chromosomes ( half the full set) • In humans this is 23 chromosomes • These cells are produced by Meiosis of special somatic cells (eggs by oogonia and sperm by spermatogonia). • The Cell Cycle for these cells ends with gamete formation. ...
... chromosomes ( half the full set) • In humans this is 23 chromosomes • These cells are produced by Meiosis of special somatic cells (eggs by oogonia and sperm by spermatogonia). • The Cell Cycle for these cells ends with gamete formation. ...
Spring 2011 Midterm Review Answers
... Structurally they make up the cytoskeleton and are involved with movement of materials in the cell and in and out of the cell. Chemically they are important because they are enzymes which are substances used to ensure that ...
... Structurally they make up the cytoskeleton and are involved with movement of materials in the cell and in and out of the cell. Chemically they are important because they are enzymes which are substances used to ensure that ...
Study Guide for Bio 1 Semester Test - Parkway C-2
... 8. What is the concentration of a solution? 9. What happens to particles in diffusion? (how do particle move?) 10. Is energy required in diffusion? 11. What is osmosis? o How do particles act in an isotonic solution? o How do particles act in a hypertonic solution? o How do particles act in a hypoto ...
... 8. What is the concentration of a solution? 9. What happens to particles in diffusion? (how do particle move?) 10. Is energy required in diffusion? 11. What is osmosis? o How do particles act in an isotonic solution? o How do particles act in a hypertonic solution? o How do particles act in a hypoto ...
DNA - Council Rock School District
... What is the study of how traits are passed from parents to offspring? - Genetics What is the name of a scientist who studies Genetics? - Geneticist ...
... What is the study of how traits are passed from parents to offspring? - Genetics What is the name of a scientist who studies Genetics? - Geneticist ...
CH 6.3-6.5 Mendelian Genetics Class Notes
... What is the study of how traits are passed from parents to offspring? - Genetics What is the name of a scientist who studies Genetics? - Geneticist ...
... What is the study of how traits are passed from parents to offspring? - Genetics What is the name of a scientist who studies Genetics? - Geneticist ...
Mutation in Mitosis and Meiosis
... If a mutation occurs in a gamete or during meiosis, the mutation is passed on to the offspring. Mutations during DNA replication 1. base pair substitution/deletion (affects 1 amino acid) 2. frame shift mutation (affects every amino acid after mutation) Mutations Due to Changes in Chromosomes 1. Nond ...
... If a mutation occurs in a gamete or during meiosis, the mutation is passed on to the offspring. Mutations during DNA replication 1. base pair substitution/deletion (affects 1 amino acid) 2. frame shift mutation (affects every amino acid after mutation) Mutations Due to Changes in Chromosomes 1. Nond ...
Ploidy
Ploidy is the number of sets of chromosomes in a cell. Usually a gamete (sperm or egg, which fuse into a single cell during the fertilization phase of sexual reproduction) carries a full set of chromosomes that includes a single copy of each chromosome, as aneuploidy generally leads to severe genetic disease in the offspring. The gametic or haploid number (n) is the number of chromosomes in a gamete. Two gametes form a diploid zygote with twice this number (2n, the zygotic or diploid number) i.e. two copies of autosomal chromosomes. For humans, a diploid species, n = 23. A typical human somatic cell contains 46 chromosomes: 2 complete haploid sets, which make up 23 homologous chromosome pairs.Because chromosome number is generally reduced only by the specialized process of meiosis, the somatic cells of the body inherit and maintain the chromosome number of the zygote. However, in many situations somatic cells double their copy number by means of endoreduplication as an aspect of cellular differentiation. For example, the hearts of two-year-old children contain 85% diploid and 15% tetraploid nuclei, but by 12 years of age the proportions become approximately equal, and adults examined contained 27% diploid, 71% tetraploid and 2% octaploid nuclei.Cells are described according to the number of sets present (the ploidy level): monoploid (1 set), diploid (2 sets), triploid (3 sets), tetraploid (4 sets), pentaploid (5 sets), hexaploid (6 sets), heptaploid or septaploid (7 sets), etc. The generic term polyploid is frequently used to describe cells with three or more sets of chromosomes (triploid or higher ploidy).