CPS - General Biology Review.cps
... Spring Final Review 1 Unlike mitosis, meiosis results in the formation of A B C D ...
... Spring Final Review 1 Unlike mitosis, meiosis results in the formation of A B C D ...
Human Genetics Presentations
... IV.Genetic disorders A. Nondisjunction: failure of chromosomes to separate during meiosis 1. Normal = 23 chromosomes 2. Abnormal = 22 or 24 ...
... IV.Genetic disorders A. Nondisjunction: failure of chromosomes to separate during meiosis 1. Normal = 23 chromosomes 2. Abnormal = 22 or 24 ...
File
... o All of the chromosomes are replicated. o The nucleus is divided in 2. This results in two genetically identical nuclei. The cell divides in 2 to form 2 genetically identical cells. Some cells undergo cell division again and again. Some cells carry out their function then die. ...
... o All of the chromosomes are replicated. o The nucleus is divided in 2. This results in two genetically identical nuclei. The cell divides in 2 to form 2 genetically identical cells. Some cells undergo cell division again and again. Some cells carry out their function then die. ...
1 - contentextra
... 10 Special combinations of letters are used to show the above cases: IA, IB and i for the alleles of ABO blood types, XB, Xb or Y for colour blindness alleles, or HbS or HbA for sickle cell anaemia. 11 Polymerase chain reaction (PCR) is a technique used on small quantities of DNA (from a crime scene ...
... 10 Special combinations of letters are used to show the above cases: IA, IB and i for the alleles of ABO blood types, XB, Xb or Y for colour blindness alleles, or HbS or HbA for sickle cell anaemia. 11 Polymerase chain reaction (PCR) is a technique used on small quantities of DNA (from a crime scene ...
Slide 1
... species due to recessive lethal mutations. – Males of some species (e.g., wasps, ants and bees) develop from unfertilized eggs and are monoploid. ...
... species due to recessive lethal mutations. – Males of some species (e.g., wasps, ants and bees) develop from unfertilized eggs and are monoploid. ...
Heredity and Reproduction.pps
... The phenotype of parent pea plants if the flowers of the first generation has all red flowers and the second generation is 75% red flowers and 25% white flowers. ...
... The phenotype of parent pea plants if the flowers of the first generation has all red flowers and the second generation is 75% red flowers and 25% white flowers. ...
Prokaryotic cell reproduction Binary Fission
... cells. This makes identical copies (clones) What are some examples of mitosis in the body? • Cuts and scrapes • Embryonic growth • Aging • Stomach cells What are some examples of mitosis in other organisms? • Asexual reproduction (budding and fragmentation) • Plants: growth of roots and stems ...
... cells. This makes identical copies (clones) What are some examples of mitosis in the body? • Cuts and scrapes • Embryonic growth • Aging • Stomach cells What are some examples of mitosis in other organisms? • Asexual reproduction (budding and fragmentation) • Plants: growth of roots and stems ...
DNA Test Study Guide
... ____________________________14. Explain why YOUR cells depend on DNA replication. 15. Explain what a mutagen is. ...
... ____________________________14. Explain why YOUR cells depend on DNA replication. 15. Explain what a mutagen is. ...
Genetics student notes. File
... Since parents contribute chromosomes randomly to each new child, every child inherits a unique set of chromosomes. 21. How many combinations are there for each chromosome 1 through 22?______________. 22. ...
... Since parents contribute chromosomes randomly to each new child, every child inherits a unique set of chromosomes. 21. How many combinations are there for each chromosome 1 through 22?______________. 22. ...
WINK Meiosis and Genetics
... Theme: Sex cells are formed by a process of cell division in which the number of chromosomes per cell is halved after replication. With the exception of sex chromosomes, for each chromosome in the body cells of a multicellular organism, there is a second similar, but not identical, chromosome. Altho ...
... Theme: Sex cells are formed by a process of cell division in which the number of chromosomes per cell is halved after replication. With the exception of sex chromosomes, for each chromosome in the body cells of a multicellular organism, there is a second similar, but not identical, chromosome. Altho ...
Past_Months_files/Ch 11 Summaries
... offspring occur in a 9:3:3:1 ratio: 9 with with both traits dominant, 3 with the first trait dominant and the second trait recessive, 3 with the first trait recessive and the second trait dominant, and 1 with both traits recessive. A Summary of Mendel’s Principles ▶ Genes are passed on from parents ...
... offspring occur in a 9:3:3:1 ratio: 9 with with both traits dominant, 3 with the first trait dominant and the second trait recessive, 3 with the first trait recessive and the second trait dominant, and 1 with both traits recessive. A Summary of Mendel’s Principles ▶ Genes are passed on from parents ...
Chapter 11 Meiosis and Genetics
... C the allele for tall plants is dominant D they were truebreeding like their parents 14 The principles of probability can be used to A determine the actual outcomes of genetic crosses B predict the traits of the parents used in genetic crosses C decide which organisms are best to use in genetic cro ...
... C the allele for tall plants is dominant D they were truebreeding like their parents 14 The principles of probability can be used to A determine the actual outcomes of genetic crosses B predict the traits of the parents used in genetic crosses C decide which organisms are best to use in genetic cro ...
Snurfle Meiosis - cloudfront.net
... 29. The nucleus__________________________ during prophase II. 30. In Metaphase II the chromosomes line up single file down the ____________________ of the cell. 31. In ____________________ the sister chromatids split up. 32. In Telophase II, ___ ____________ daughter cells are being formed. They are ...
... 29. The nucleus__________________________ during prophase II. 30. In Metaphase II the chromosomes line up single file down the ____________________ of the cell. 31. In ____________________ the sister chromatids split up. 32. In Telophase II, ___ ____________ daughter cells are being formed. They are ...
Dragon Meiosis
... simulate the process of crossing-over that occurs during prophase I. Select one sister chromatid from each of the homologous chromosomes in pair one and cut them in half. Now take each piece and tape it to the piece from the opposite chromatid. Reassemble the chromatids into the homologous chromosom ...
... simulate the process of crossing-over that occurs during prophase I. Select one sister chromatid from each of the homologous chromosomes in pair one and cut them in half. Now take each piece and tape it to the piece from the opposite chromatid. Reassemble the chromatids into the homologous chromosom ...
cells
... • One from father, one from mother • All body cells Haploid • 1 of each type of chromosome • Only in gametes (reproductive cells) Aneuploid • Wrong number of chromosomes • Extra or missing chromosomes ...
... • One from father, one from mother • All body cells Haploid • 1 of each type of chromosome • Only in gametes (reproductive cells) Aneuploid • Wrong number of chromosomes • Extra or missing chromosomes ...
Lecture 6: Units of Selection cont`d
... • entity that replicates itself with fidelity & is stable through time is the gene organism is “vehicle” gene is “replicator” • organism’s fitness affects frequency of genes over time • adaptations exist b/c they repro of an allele relative to other alleles by the fitness of the “vehicle” ...
... • entity that replicates itself with fidelity & is stable through time is the gene organism is “vehicle” gene is “replicator” • organism’s fitness affects frequency of genes over time • adaptations exist b/c they repro of an allele relative to other alleles by the fitness of the “vehicle” ...
file - Athens Academy
... preferential segregation (meiotic drive). All chromosomes that are heterozygous for knobs undergo meiotic drive in the presence of Ab10. This ensures the transmission of the knobbed chromatid to the progeny at rates of up to 83%. These unique properties of Ab10 have been studied since the 1940s; how ...
... preferential segregation (meiotic drive). All chromosomes that are heterozygous for knobs undergo meiotic drive in the presence of Ab10. This ensures the transmission of the knobbed chromatid to the progeny at rates of up to 83%. These unique properties of Ab10 have been studied since the 1940s; how ...
HUMAN GENETICS
... A. Human cells contain 23 pairs of chromosomes. That is a total of 46 chromosomes per cell. B. Human Chromosomes are classified as follows: 1. 22 pairs of Autosomesa. Structurally, autosomes are similar; however, they do contain different genes. b. These are responsible for providing us with traits ...
... A. Human cells contain 23 pairs of chromosomes. That is a total of 46 chromosomes per cell. B. Human Chromosomes are classified as follows: 1. 22 pairs of Autosomesa. Structurally, autosomes are similar; however, they do contain different genes. b. These are responsible for providing us with traits ...
Adaptation and Inheritance
... ________________________________. A small section of a chromosome is called a _______________. Humans have _____ chromosomes in our body cells. The chromosomes contain the information needed for our ____________________________ . You inherit half of your _____________________________ from your mothe ...
... ________________________________. A small section of a chromosome is called a _______________. Humans have _____ chromosomes in our body cells. The chromosomes contain the information needed for our ____________________________ . You inherit half of your _____________________________ from your mothe ...
1. An example of a genotype is… 2. How are genes, chromosomes
... boy, carrier female, marriage, and death? What does it mean to be a carrier? 4. What is the genotype for a male with colorblindness? 5. What is the phenotype of the animal on pages 366-367? 6. What is the haploid number of a human gamete? 7. What is the diploid number of a human cell? 8. How do you ...
... boy, carrier female, marriage, and death? What does it mean to be a carrier? 4. What is the genotype for a male with colorblindness? 5. What is the phenotype of the animal on pages 366-367? 6. What is the haploid number of a human gamete? 7. What is the diploid number of a human cell? 8. How do you ...
Module B1a, topic 1 Food chains eg grass → rabbit → fox producer
... organism's cells and pass genetic traits ( eye colour, blood type, skin colour ) to offspring The total complement of genes in an organism or cell is known as its genome which may be stored on one or more chromosomes found in the nucleus of the organisms cells. Gene → DNA → Chromosome → Nucleus ...
... organism's cells and pass genetic traits ( eye colour, blood type, skin colour ) to offspring The total complement of genes in an organism or cell is known as its genome which may be stored on one or more chromosomes found in the nucleus of the organisms cells. Gene → DNA → Chromosome → Nucleus ...
Sex-linked traits
... There are two types of cell: 1) Somatic: 46 chromosomes with 23 pairs (types) 2) Gamete: 23 chromosomes with 23 types (no pairs) (Your mom gave you 23 and your dad gave you 23) Somatic Cells: Create identical duplicate cells, each with a diploid set of chromosomes. Over 99% of cell divisions are som ...
... There are two types of cell: 1) Somatic: 46 chromosomes with 23 pairs (types) 2) Gamete: 23 chromosomes with 23 types (no pairs) (Your mom gave you 23 and your dad gave you 23) Somatic Cells: Create identical duplicate cells, each with a diploid set of chromosomes. Over 99% of cell divisions are som ...
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).