Chapter 15 practice Questions AP Biology
... A) The two genes likely are located on different chromosomes. B) All of the offspring have combinations of traits that match one of the two parents. C) The genes are located on sex chromosomes. D) Abnormal meiosis has occurred. E) Independent assortment is hindered. 2) A 0.1% frequency of recombinat ...
... A) The two genes likely are located on different chromosomes. B) All of the offspring have combinations of traits that match one of the two parents. C) The genes are located on sex chromosomes. D) Abnormal meiosis has occurred. E) Independent assortment is hindered. 2) A 0.1% frequency of recombinat ...
CHAPTER 10 notes
... • BODY (autosomal/somatic) cells reproduce by mitosis • some organisms do also, but we will talk about that later! ...
... • BODY (autosomal/somatic) cells reproduce by mitosis • some organisms do also, but we will talk about that later! ...
Unit B2, B2.7 Mark scheme
... factor for colour has two forms accept gene for factor and allele for form ...
... factor for colour has two forms accept gene for factor and allele for form ...
Chromosomal abnormalities
... • When a portion of one chromosome is transferred to another non homologous chromosome and a fusion gene is created. There are two main types of translocations: • Balanced: An even exchange of material with no genetic information is extra or missing, and individual is normal. • Unbalanced: Where the ...
... • When a portion of one chromosome is transferred to another non homologous chromosome and a fusion gene is created. There are two main types of translocations: • Balanced: An even exchange of material with no genetic information is extra or missing, and individual is normal. • Unbalanced: Where the ...
3-Chromo abn
... • When a portion of one chromosome is transferred to another non homologous chromosome and a fusion gene is created. There are two main types of translocations: • Balanced: An even exchange of material with no genetic information is extra or missing, and individual is normal. • Unbalanced: Where the ...
... • When a portion of one chromosome is transferred to another non homologous chromosome and a fusion gene is created. There are two main types of translocations: • Balanced: An even exchange of material with no genetic information is extra or missing, and individual is normal. • Unbalanced: Where the ...
to Chromosomal Abnormalities ppt
... • When a portion of one chromosome is transferred to another non homologous chromosome and a fusion gene is created. There are two main types of translocations: • Balanced: An even exchange of material with no genetic information is extra or missing, and individual is normal. • Unbalanced: Where the ...
... • When a portion of one chromosome is transferred to another non homologous chromosome and a fusion gene is created. There are two main types of translocations: • Balanced: An even exchange of material with no genetic information is extra or missing, and individual is normal. • Unbalanced: Where the ...
Chapter 4 – Patterns of Heredity
... full number of chromosomes that is normal for a human being. Any cell that contains the full number of chromosomes (two sets) for a species is a 2n cell, also called a diploid cell. Gametes – cells that contain half the usual number of chromosomes – one chromosome from each pair. - Gametes are 1n ...
... full number of chromosomes that is normal for a human being. Any cell that contains the full number of chromosomes (two sets) for a species is a 2n cell, also called a diploid cell. Gametes – cells that contain half the usual number of chromosomes – one chromosome from each pair. - Gametes are 1n ...
Chapter 13 Guided Notes - Meiosis and Life Cycles
... ○ The second division, meiosis II, separates ______________________________________________. ○ The four daughter cells at the end of meiosis have only _____________________ as many chromosomes as the original parent cell. ...
... ○ The second division, meiosis II, separates ______________________________________________. ○ The four daughter cells at the end of meiosis have only _____________________ as many chromosomes as the original parent cell. ...
Chromosome mutations
... • most duplications have no phenotypic consequence • sometimes effects can be seen due to increased gene dosage • play a very important role in evolution: • increase gene number • evolution of new genes (paralogs!) ...
... • most duplications have no phenotypic consequence • sometimes effects can be seen due to increased gene dosage • play a very important role in evolution: • increase gene number • evolution of new genes (paralogs!) ...
7.1 Chromosomes and Phenotype
... Two copies of each autosomal gene affect p__________. • Mendel studied autosomal gene traits, like hair texture. ...
... Two copies of each autosomal gene affect p__________. • Mendel studied autosomal gene traits, like hair texture. ...
Genetics - TeacherWeb
... itself to the same chromosome backwards Translocation: piece of one chromosome breaks off and reattaches itself to a different chromosome (Stillbirths) ...
... itself to the same chromosome backwards Translocation: piece of one chromosome breaks off and reattaches itself to a different chromosome (Stillbirths) ...
REVIEW FOR TEST 4: GENETICS
... 9. Compare mitosis, meiosis I, and meiosis II. What is the chromosomal arrangement during metaphase? Chromosomes are either individually aligned or pairs of homologous chromosomes are aligned. ...
... 9. Compare mitosis, meiosis I, and meiosis II. What is the chromosomal arrangement during metaphase? Chromosomes are either individually aligned or pairs of homologous chromosomes are aligned. ...
BioSc 231 Exam 4 2008
... containing 10 micrograms per milliliter of the antibiotic tetracycline and one agar plate without antibiotic. All of the colonies are able to grow on the agar plate without antibiotic but only 3 colonies grew on each of the agar plates containing tetracycline. You notice that the three colonies that ...
... containing 10 micrograms per milliliter of the antibiotic tetracycline and one agar plate without antibiotic. All of the colonies are able to grow on the agar plate without antibiotic but only 3 colonies grew on each of the agar plates containing tetracycline. You notice that the three colonies that ...
meiosis_note_and_worksheet
... 1. What is the difference between metaphase I and metaphase II? 2. What is the difference between anaphase I and anaphase II? 3. Which stage of meiosis (I or II) is most like mitosis? Explain. 4. How are haploid cells different from diploid cells in humans? 5. What is a tetrad? 6. What are homologou ...
... 1. What is the difference between metaphase I and metaphase II? 2. What is the difference between anaphase I and anaphase II? 3. Which stage of meiosis (I or II) is most like mitosis? Explain. 4. How are haploid cells different from diploid cells in humans? 5. What is a tetrad? 6. What are homologou ...
Basic Principles and Genetic Crosses
... If we look at an organism with two genes e.g. AaBb, each of the A’s can join with either of the B’s at gamete formation. Thus we can have four gametes: AB, Ab, aB and ab. ...
... If we look at an organism with two genes e.g. AaBb, each of the A’s can join with either of the B’s at gamete formation. Thus we can have four gametes: AB, Ab, aB and ab. ...
Heredity 1)Heredity is the ______ of the qualities that were passed
... Females have_____ X chromosomes and Males have one_____ and one ______ chromosome. The mother has only x chromosomes! Males pass either an ____ or _____ chromosome to the child which determined the gender of the child. 18) _________________________ is affected by the genes you inherit and other fact ...
... Females have_____ X chromosomes and Males have one_____ and one ______ chromosome. The mother has only x chromosomes! Males pass either an ____ or _____ chromosome to the child which determined the gender of the child. 18) _________________________ is affected by the genes you inherit and other fact ...
Cellular Reproduction
... In the case of sea stars, some of the central portion must be present This is what happens when you grow a new plant from a cutting of an existing plant This asexual reproduction is due to mitosis and leads to offspring that are genetically identical to the parent Some organisms can carry out parthe ...
... In the case of sea stars, some of the central portion must be present This is what happens when you grow a new plant from a cutting of an existing plant This asexual reproduction is due to mitosis and leads to offspring that are genetically identical to the parent Some organisms can carry out parthe ...
Unit 3 Genetics and Heredity Study Guide
... Mendel “crossed” pea plants by ______________________________________________________________ Mendel crossed pea plants with opposite traits (ex. Tall & short) ...
... Mendel “crossed” pea plants by ______________________________________________________________ Mendel crossed pea plants with opposite traits (ex. Tall & short) ...
Meiosis simulation
... Recall that chromosomes are composed of DNA and contain the genetic blueprint for an organism. Each species has its own unique set of chromosomes, and all individuals in a particular species typically have the same number of chromosomes. Humans have 46 chromosomes. The domestic dog has 78 chromosome ...
... Recall that chromosomes are composed of DNA and contain the genetic blueprint for an organism. Each species has its own unique set of chromosomes, and all individuals in a particular species typically have the same number of chromosomes. Humans have 46 chromosomes. The domestic dog has 78 chromosome ...
Mutation and Genetic Variation - NAU jan.ucc.nau.edu web server
... Iris setosa has 2n = 36 chromosomes (n=18) Iris virginica has 72 chromosomes (4n) Iris versicolor has 108 chromosomes (6n) I. Versicolor (common blue flag) may have been derived by hybridization between the other two species • Proportion of polyploid angiosperms is estimated to be from 30% (Stebbins ...
... Iris setosa has 2n = 36 chromosomes (n=18) Iris virginica has 72 chromosomes (4n) Iris versicolor has 108 chromosomes (6n) I. Versicolor (common blue flag) may have been derived by hybridization between the other two species • Proportion of polyploid angiosperms is estimated to be from 30% (Stebbins ...
Human Genetics Presentations
... 1.Selecting a small # of people to represent an entire population 2.Must be a random sample 3.Ex: through random sampling, researchers discovered that 65% of people in US taste PTC, ...
... 1.Selecting a small # of people to represent an entire population 2.Must be a random sample 3.Ex: through random sampling, researchers discovered that 65% of people in US taste PTC, ...
Document
... Chromosomes fail to separate properly during meiosis Condition in which an organism has extra sets of chromosomes Mutations that affect the reproductive cells Mutations that affect the body cells Which (#3 or #4 from above) are not inheritable Mutations that involve segment of chromosomes, whole chr ...
... Chromosomes fail to separate properly during meiosis Condition in which an organism has extra sets of chromosomes Mutations that affect the reproductive cells Mutations that affect the body cells Which (#3 or #4 from above) are not inheritable Mutations that involve segment of chromosomes, whole chr ...
Meiosis Notes - Roslyn Public Schools
... In the example shown here, each of the four daughter cells produced in meiosis II receives two chromatids These four daughter cells now contain the haploid number (N)—just two chromosomes each. ...
... In the example shown here, each of the four daughter cells produced in meiosis II receives two chromatids These four daughter cells now contain the haploid number (N)—just two chromosomes each. ...
Meiosis and Sex
... 2. Understand genetic linkage 3. Explain sex-linked genes and why more common in males ...
... 2. Understand genetic linkage 3. Explain sex-linked genes and why more common in males ...
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.