• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Biology Midterm Exam Review Guide
Biology Midterm Exam Review Guide

... 16. In certain species of rabbit, when a black rabbit is crossed with a white rabbit, a grey rabbit is produced. Show the results of a cross between a white rabbit and a grey rabbit. Include the genotypes of the parents, the punnett square, and genotypes and phenotypes of the offspring (including %) ...
Exam 4 Review - Iowa State University
Exam 4 Review - Iowa State University

... C) production of daughter cells D) alignment of chromosomes at the center of cell E) condensation of chromatin 3.) A human cell containing 22 autosomes and a Y chromosome is a A) egg B) zygote C) sperm D) a male somatic cell E) a female somatic cell 4.) Which of the following happens at the conclusi ...
Meiosis
Meiosis

... If humans were created through mitosis: 1st generation 46 from mom + 46 from dad = 92 chromosomes for baby ...
Hybrid pink and white azalea (Rhododendron sp., fam. Ericaceae)
Hybrid pink and white azalea (Rhododendron sp., fam. Ericaceae)

... 23 from the father + 23 from the mother ...
Inheritance: Mitosis and Meiosis
Inheritance: Mitosis and Meiosis

... autosomal chromosomes and 1 pair of sex chromosomes. Females have 2 “X” chromosomes (XX) and males have an “X” and “Y” chromosome (XY).With the exception of sex cells, each cell has 22 pairs of autosomal chromosomes and 1 pair of sex chromosomes. Females have 2 “X” chromosomes (XX) and males have an ...
Exam V Study Guide
Exam V Study Guide

... plants at an abbey? The archetype, or type specimen, the organism made up of the most common forms of traits found in nature, is also referred to as the? When a gene for a given trait comes in alternative versions that specify different forms of the trait (for example, purple flower and white flower ...
chapter 5 Section 3 Notes 17e - compare and contrast the outcome
chapter 5 Section 3 Notes 17e - compare and contrast the outcome

... Recall from 26-1 Asexual ________________________ has only ______parent and produces offspring _______________ to the parent – Processes of…. • Mitosis (in body or somatic cells) ...
Vocabulary Review - POTOSI SCHOOL DISTRICT
Vocabulary Review - POTOSI SCHOOL DISTRICT

... characteristic, such as hair color ...
1 - life.illinois.edu
1 - life.illinois.edu

... a. a single egg and three polar bodies. b. two eggs and two polar bodies. c. three eggs and a polar body. d. four eggs. 30. In animals most inherited simple mutations such as single base changes caused by DNA polymerase errors occur in the a. female germline because their mature eggs are retained f ...
REVIEW FOR TEST 4: GENETICS
REVIEW FOR TEST 4: GENETICS

... 8. When the kinetochore microtubules disassemble, they do so at the which end, the chromosome end or centrosome end? 9. Compare cytokinesis in animals and plants. Include cleavage furrow and cell plate formation. 10. In mitosis, one diploid cell produces ____ diploid cells. A human skin cell consist ...
Mysterious Meiosis
Mysterious Meiosis

... chromosomes that make us girl or boy XX-Female XY-Male (non-homologous) Autosomes: The 22 other pairs of chromosomes Tetrad: Homologous chromosomes that are copied and stuck at the centromere. ...
Reproduction and Heredity
Reproduction and Heredity

... Sexual reproduction ...
Reproduction
Reproduction

... • Produces Testosterone – male hormone for secondary sex characteristics and tells the ...
Meiosis
Meiosis

...  The fusion of two gametes (each with 8.4 million possible chromosome combinations from independent assortment) produces a zygote with any of about _____ trillion diploid combinations  _________________________ adds even more variation  Each _________________ has a unique genetic identity The Evo ...
Ch 14-2 DR
Ch 14-2 DR

... 14. What are symptoms of hemophilia?_____________________________________________________ Who gets it? _______________________ How can it be treated?_____________________________________________________________ 15. What are symptoms of Duchenne Muscular Dystrophy?____________________________________ ...
CHAPTER 10 STUDY GUIDE (Mendel and Meiosis)
CHAPTER 10 STUDY GUIDE (Mendel and Meiosis)

... 1) Know and be able to identify the stages of Mitosis and the terms associated with the movement and positioning of chromosomes. (See fig. 5.7 on p. 141) 2) Know and distinguish between the 4 main types of asexual reproduction: binary fission, budding, fragmentation, and vegetative reproduction. Pp. ...
Mitosis Lecture
Mitosis Lecture

... Cell Replication ...
Chapter 4 • Lesson 23
Chapter 4 • Lesson 23

... called the haploid number. Haploid refers to "half." The chromosome number in gametes is haploid because sex cells contain half as many chromosomes as somatic cells. Sexual reproduction requires the joining of two gametes, a sperm from the male parent and an egg from the female parent. The process ...
Section 3: DNA is the inherited material responsible for variation
Section 3: DNA is the inherited material responsible for variation

... One half goes to one side of the cell, the other identical half moves to the other side of the cell. Then the cell _____________________ resulting in an amoeba with the same number of DNA as the __________________ cell. ...
Test 1
Test 1

... Types of Questions Multiple-choice, matching, short answer, fill in the blanks, explain, work out problems Chapter 1 Introduction to Genetics:  What do we study in genetics? Give two very different definitions for genetics  Know the meaning of terms, gene, chromosome, protein, mitosis, meiosis, ka ...
meiosis_note_and_worksheet
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 ...
Bell Work: What is the difference between a haploid and diploid cell?
Bell Work: What is the difference between a haploid and diploid cell?

... between homologous chromosomes during prophase I of  meiosis. ­Exchange of genetic material creates more genetic          diversity. ­Results in a new combination of alleles, called genetic  recombination. ­Can occur at any location on a chromosome and in  several locations at the same time. Draw a  ...
BIO 103 More Genetics Ch.13
BIO 103 More Genetics Ch.13

... Red-Green ...
Slide 1
Slide 1

... So how does it all fit into the nucleus? ...
common formative assessment planning template
common formative assessment planning template

... 1. Describe the structure, location and function of chromosomes, genes and DNA and how they relate to each other in the living cell. 2. Demonstrate the relationship of corresponding genes on pairs of chromosomes to traits inherited by offspring. 3. Describe in writing the role of the germ cells in t ...
< 1 ... 294 295 296 297 298 299 300 301 302 ... 336 >

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).
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report