Lecture Notes
... 1. An organism’s life cycle is the sequence of stages leading a. from the adults of one generation b. to the adults of the next 2. Humans and many animals and plants are diploid, with body cells that have a. b. 3. Meiosis is a process that converts diploid nuclei to haploid nuclei a. Diploid cells h ...
... 1. An organism’s life cycle is the sequence of stages leading a. from the adults of one generation b. to the adults of the next 2. Humans and many animals and plants are diploid, with body cells that have a. b. 3. Meiosis is a process that converts diploid nuclei to haploid nuclei a. Diploid cells h ...
Biology WarmUp: Meiosis Vocabulary Review 1. What does it
... Biology WarmUp: Meiosis Vocabulary Review 6. In fruit flies, the gene for star eye and speck wing are on the same chromosome, yet offspring from star-eyed, speckwinged parents often inherit star eyes without the speck wings. How is this possible? Make a diagram to illustrate the process that is res ...
... Biology WarmUp: Meiosis Vocabulary Review 6. In fruit flies, the gene for star eye and speck wing are on the same chromosome, yet offspring from star-eyed, speckwinged parents often inherit star eyes without the speck wings. How is this possible? Make a diagram to illustrate the process that is res ...
Sex-Linked Traits (x-linked traits)
... - Sex is determined by the 23rd pair of chromosomes – called the sex chromosomes - Chromosome pairs #1-22 are called autosomes - Females have two X chromosomes while males have an X and a Y, ie, the 23rd pair in males is NOT homologous – the Y chromosome is shorter and does not carry the same geneti ...
... - Sex is determined by the 23rd pair of chromosomes – called the sex chromosomes - Chromosome pairs #1-22 are called autosomes - Females have two X chromosomes while males have an X and a Y, ie, the 23rd pair in males is NOT homologous – the Y chromosome is shorter and does not carry the same geneti ...
Chapter 7 Human Inheritance
... Used by Thomas Hunt Morgan for genetic studies 8 chromosomes in diploid cell Poison breaks down microtubules Prevents cells from completing mitosis Causes cells to be trapped in metaphase ...
... Used by Thomas Hunt Morgan for genetic studies 8 chromosomes in diploid cell Poison breaks down microtubules Prevents cells from completing mitosis Causes cells to be trapped in metaphase ...
Genetics: The Science of Heredity
... Reginald Punnett came up with Punnett Squares to predict the proportions of possible in offspring. Meiosis —genotypes a type of cell division that produces four cells, each with half the number of chromosomes as the parent cell. one parent’s genotype T t one parent’s t in the sex organs In animals, ...
... Reginald Punnett came up with Punnett Squares to predict the proportions of possible in offspring. Meiosis —genotypes a type of cell division that produces four cells, each with half the number of chromosomes as the parent cell. one parent’s genotype T t one parent’s t in the sex organs In animals, ...
Unit 3 Jeopardy Questions and Answers
... What is cytokinesis? (separation of cytoplasm; physical splitting of cell after mitosis) What happens during the G1 and G2 phases of the cell cycle? (growth!) What is a centromere? (middle part of chromosome where sister chromatids meet) Chapter 13, 2 How many autosomes are found in a gamete ...
... What is cytokinesis? (separation of cytoplasm; physical splitting of cell after mitosis) What happens during the G1 and G2 phases of the cell cycle? (growth!) What is a centromere? (middle part of chromosome where sister chromatids meet) Chapter 13, 2 How many autosomes are found in a gamete ...
NAME - Liberty Union High School District
... 6. Which two genes/traits in Reebops are located on the same chromosome? 7. What do we call it when to genes are on the same chromosome? a. What genetics law does this test? 8. Look at the body parts again, which Reebop trait shows incomplete dominance? 9. Explain how you knew this was incomplete do ...
... 6. Which two genes/traits in Reebops are located on the same chromosome? 7. What do we call it when to genes are on the same chromosome? a. What genetics law does this test? 8. Look at the body parts again, which Reebop trait shows incomplete dominance? 9. Explain how you knew this was incomplete do ...
Study Guide
... 5. The triplet code or codons found in the DNA molecule direct the order in which amino acids are put together to form specific proteins. 6. Amino acids are small molecules that are linked together chemically to form proteins. Amino acids are referred to as the building blocks of proteins. 7. A codo ...
... 5. The triplet code or codons found in the DNA molecule direct the order in which amino acids are put together to form specific proteins. 6. Amino acids are small molecules that are linked together chemically to form proteins. Amino acids are referred to as the building blocks of proteins. 7. A codo ...
Unit A: Biological Diversity
... where the DNA of each parent is divided in half and transmitted to the offspring. The offspring receive half of the genetic information from each parent. Example: Humans have 46 chromosomes and a person gets 23 chromosomes from their mother and 23 chromosomes from their father. Sexual reproducti ...
... where the DNA of each parent is divided in half and transmitted to the offspring. The offspring receive half of the genetic information from each parent. Example: Humans have 46 chromosomes and a person gets 23 chromosomes from their mother and 23 chromosomes from their father. Sexual reproducti ...
Vocabulary
... 19. _____________________--the relative possibility that an event will occur Sexual and Asexual Reproduction 20._______ ____________—the formation of new cells from cells that have a nucleus; they divide, then divide again 21. _____________—the process in cell division by which the cell’s nucleus di ...
... 19. _____________________--the relative possibility that an event will occur Sexual and Asexual Reproduction 20._______ ____________—the formation of new cells from cells that have a nucleus; they divide, then divide again 21. _____________—the process in cell division by which the cell’s nucleus di ...
Quiz 12
... C) If the two alleles at a locus differ, then one (the dominant allele) determines the organism’s appearance, and the other (the recessive allele) has no noticeable effect on appearance. D) The “law of segregation” --- Mendel did not know about genes or chromosomes per se. However, in modern terms, ...
... C) If the two alleles at a locus differ, then one (the dominant allele) determines the organism’s appearance, and the other (the recessive allele) has no noticeable effect on appearance. D) The “law of segregation” --- Mendel did not know about genes or chromosomes per se. However, in modern terms, ...
SBI 3U Genetics Review Questions LG #1: DNA
... 2. Name and describe the 5 methods of asexual reproduction. Give advantages and disadvantages of each. LG#4: Meiosis 1. Be able to order and identify the stages of Meiosis I and Meiosis II, and describe what events occur in each of the stages with respect to homologues and sister chromatids 2. Descr ...
... 2. Name and describe the 5 methods of asexual reproduction. Give advantages and disadvantages of each. LG#4: Meiosis 1. Be able to order and identify the stages of Meiosis I and Meiosis II, and describe what events occur in each of the stages with respect to homologues and sister chromatids 2. Descr ...
Meiosis/ Genetics Study Guide*Test Wednesday 2/ 22/12
... 15. What is the law of independent assortment? states that separate genes for separate traits are passed independently of one another from parents to offspring. That is, the biological selection of a particular gene in the gene pair for one trait to be passed to the offspring has nothing to do with ...
... 15. What is the law of independent assortment? states that separate genes for separate traits are passed independently of one another from parents to offspring. That is, the biological selection of a particular gene in the gene pair for one trait to be passed to the offspring has nothing to do with ...
Cell cycle to Sexual Reproduction
... I when homologous chromosomes (tetrads) fail to separate or in Meiosis II when sister chromatids fail to separate. • One gamete will have two copies of chromosome while the other will have none. • Do you think these chromosomes are genetic? Think about the result in people when chromosomal mutations ...
... I when homologous chromosomes (tetrads) fail to separate or in Meiosis II when sister chromatids fail to separate. • One gamete will have two copies of chromosome while the other will have none. • Do you think these chromosomes are genetic? Think about the result in people when chromosomal mutations ...
B1 - Knockhardy
... Instructions for how an organism develops are found in the nucleus • chromosomes are found in cell nuclei - they come in pairs • every human body cell has 23 chromosomes • genes are sections of DNA molecules that make up chromosomes • genes are instructions on how to make proteins - they are pairs • ...
... Instructions for how an organism develops are found in the nucleus • chromosomes are found in cell nuclei - they come in pairs • every human body cell has 23 chromosomes • genes are sections of DNA molecules that make up chromosomes • genes are instructions on how to make proteins - they are pairs • ...
10 - WTPS.org
... dominant over another it is called… 1. Multiple alleles 2. Codominant alleles 3. Incomplete dominance 4. Multiple genes ...
... dominant over another it is called… 1. Multiple alleles 2. Codominant alleles 3. Incomplete dominance 4. Multiple genes ...
Miss Overskei`s Chapter ?`s
... MULTIPLE CHOICE QUESTIONS. Circle the letter of the answer that BEST completes the statement. There can be only ONE correct answer. DNA that is spread out in a non-dividing cell is called _____________________. A. chromosomes B. chromatin The two copies of each chromosome that are the same size, sam ...
... MULTIPLE CHOICE QUESTIONS. Circle the letter of the answer that BEST completes the statement. There can be only ONE correct answer. DNA that is spread out in a non-dividing cell is called _____________________. A. chromosomes B. chromatin The two copies of each chromosome that are the same size, sam ...
genetics_4
... rod like segments called chromosomes • Chromosomes occurs in pairs in every cell of our body except in the sperm and ovum. • Chromosomes numbers are the same for each specie. ...
... rod like segments called chromosomes • Chromosomes occurs in pairs in every cell of our body except in the sperm and ovum. • Chromosomes numbers are the same for each specie. ...
Heredity Study Guide
... 27. ___Binary ____ ____Fission______ a method of asexual reproduction in which bacteria splits into two. 28. _______ Budding ______________: happens when a part of the parent organism, such as a hydra, pinches off and forms a new organism. 29. _____ Fragmentation ________________: parts of the organ ...
... 27. ___Binary ____ ____Fission______ a method of asexual reproduction in which bacteria splits into two. 28. _______ Budding ______________: happens when a part of the parent organism, such as a hydra, pinches off and forms a new organism. 29. _____ Fragmentation ________________: parts of the organ ...
Practice Exam 3
... 1.) Through a microscope, you can see a cell wall beginning to develop arcoss the middle of the cell and the nuclei re-forming an either side of the cell wall. The cell is most likely: a. an animal cell in the process of cytokinesis b. a plant cell in the process of cytokinesis c. a bacterial cell d ...
... 1.) Through a microscope, you can see a cell wall beginning to develop arcoss the middle of the cell and the nuclei re-forming an either side of the cell wall. The cell is most likely: a. an animal cell in the process of cytokinesis b. a plant cell in the process of cytokinesis c. a bacterial cell d ...
Human Genetic Mutations
... • This condition is called ________________________. • Trisomy 21 = Individual has _____ copies of chromosome # ________ Chromosomal Mutations • Most chromosomal mutations are ______________________ • If the fetus survives: Tend to cause wide-spread abnormalities • Example: Down Syndrome • Down Synd ...
... • This condition is called ________________________. • Trisomy 21 = Individual has _____ copies of chromosome # ________ Chromosomal Mutations • Most chromosomal mutations are ______________________ • If the fetus survives: Tend to cause wide-spread abnormalities • Example: Down Syndrome • Down Synd ...
Karyotypes and Karyotyping
... To "read" a set of human chromosomes, scientists first use three key features to identify their similarities and differences: ...
... To "read" a set of human chromosomes, scientists first use three key features to identify their similarities and differences: ...
Creating a Karyotype: A Chromosome Study
... Creating a Karyotype: A Chromosome Study An examination of the chromosomes of a cell under high magnification can give a lot of information about an organism. If the cells are from an unborn human, its sex can be determined before it is born. It can also be determined if the unborn may have certain ...
... Creating a Karyotype: A Chromosome Study An examination of the chromosomes of a cell under high magnification can give a lot of information about an organism. If the cells are from an unborn human, its sex can be determined before it is born. It can also be determined if the unborn may have certain ...
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).