Meiosis - SP New Moodle
... • A cell with two sets is called diploid (2n) • For humans, the diploid number is 46 (2n = 46) ...
... • A cell with two sets is called diploid (2n) • For humans, the diploid number is 46 (2n = 46) ...
Final Exam
... Explain the difference between spermatogenesis and oogenesis. Why is there a difference? ____________________________________________________________________________________________________________________ ______________________________________________________________________________________________ ...
... Explain the difference between spermatogenesis and oogenesis. Why is there a difference? ____________________________________________________________________________________________________________________ ______________________________________________________________________________________________ ...
Biology 101 chpter 2
... How Meiosis Differs From Mitosis Meiosis has three unique features: 1. Synapsis and cross-over The process of pairing throughout the length of the homologous chromosomes and exchanging genetic fragments is called crossing-over 2. Reduction Division Since DNA only replicates once, before meiosis I, ...
... How Meiosis Differs From Mitosis Meiosis has three unique features: 1. Synapsis and cross-over The process of pairing throughout the length of the homologous chromosomes and exchanging genetic fragments is called crossing-over 2. Reduction Division Since DNA only replicates once, before meiosis I, ...
CP BIOLOGY: Semester 2 Final REVIEW
... designed to give you sample questions/problems and remind you of all material covered from the semester. The final is not limited to this review ...
... designed to give you sample questions/problems and remind you of all material covered from the semester. The final is not limited to this review ...
Survival Guide
... Nucleus – (organelle) the control center of the cell. Regulates the cellular activities, contains (DNA) in chromosomes. Vacuole – A storage compartment to store water, nutrients, & waste until needed or removed. Vacuoles are large in plants. Chloroplast – In plants. Produces energy from sunlight by ...
... Nucleus – (organelle) the control center of the cell. Regulates the cellular activities, contains (DNA) in chromosomes. Vacuole – A storage compartment to store water, nutrients, & waste until needed or removed. Vacuoles are large in plants. Chloroplast – In plants. Produces energy from sunlight by ...
NAME KIT # ______ Karyotyping Lab 1. a. Normally, how many
... 5. Note the genes that are found within your baby’s chromosomes. Letters are assigned to represent some of those genetic traits. If your baby has a combination of dominant gene, shown by a capital letter, and a recessive gene, shown by a lower case letter, the dominant gene prevents expression of th ...
... 5. Note the genes that are found within your baby’s chromosomes. Letters are assigned to represent some of those genetic traits. If your baby has a combination of dominant gene, shown by a capital letter, and a recessive gene, shown by a lower case letter, the dominant gene prevents expression of th ...
Unit 4 AP Exam: Cell Division
... A) Binary fission would not allow for the formation of new organisms. B) Cell division would allow for the orderly and efficient segregation of multiple linear chromosomes. C) Cell division would be faster than binary fission. D) Cell division allows for lower rates of error per chromosome replicati ...
... A) Binary fission would not allow for the formation of new organisms. B) Cell division would allow for the orderly and efficient segregation of multiple linear chromosomes. C) Cell division would be faster than binary fission. D) Cell division allows for lower rates of error per chromosome replicati ...
Karyotyping Lab:
... 5. Note the genes that are found within your baby’s chromosomes. Letters are assigned to represent some of those genetic traits. If your baby has a combination of dominant gene, shown by a capital letter, and a recessive gene, shown by a lower case letter, the dominant gene prevents expression of th ...
... 5. Note the genes that are found within your baby’s chromosomes. Letters are assigned to represent some of those genetic traits. If your baby has a combination of dominant gene, shown by a capital letter, and a recessive gene, shown by a lower case letter, the dominant gene prevents expression of th ...
FLASHCARDS
... alleles Complementary DNA sequence for TCAGAT AGTCTA An organism’s appearance/physical characteristics phenotype Genetic make-up of an organism genotype The # of recessive alleles needed to express that trait two The sex cells (egg cells, sperm cells) gametes ...
... alleles Complementary DNA sequence for TCAGAT AGTCTA An organism’s appearance/physical characteristics phenotype Genetic make-up of an organism genotype The # of recessive alleles needed to express that trait two The sex cells (egg cells, sperm cells) gametes ...
Sex linked inheritance, sex linkage in Drosophila and man, XO, XY
... parent, and the different kinds of gametes, each parent produces are listed along the appropriate axis. Combining the gametes in the interior of the square shows the results of random fertilization. Ratios for test cross: 1:1:1:1 Ratios of self cross : 9:3:3:1 Hence proved non-homologous chromosome ...
... parent, and the different kinds of gametes, each parent produces are listed along the appropriate axis. Combining the gametes in the interior of the square shows the results of random fertilization. Ratios for test cross: 1:1:1:1 Ratios of self cross : 9:3:3:1 Hence proved non-homologous chromosome ...
Slide 1 - School
... 1)Fossils-show how organisms have changed over time or that some have become extinct 2)Horse-fossils show how it evolved from small swamp dwelling animals to what it is today ...
... 1)Fossils-show how organisms have changed over time or that some have become extinct 2)Horse-fossils show how it evolved from small swamp dwelling animals to what it is today ...
10.2 - Dihybrid Crosses and Gene Linkage
... During prophase I, the homologous pairs of chromosomes pair up and are in close proximity to each other. Breakages may occur along the chromatids, allowing fragments to be exchanged between the non-sister chromatids. The rejoining of non-sister chromatids forms chiasmata, which remain intact until t ...
... During prophase I, the homologous pairs of chromosomes pair up and are in close proximity to each other. Breakages may occur along the chromatids, allowing fragments to be exchanged between the non-sister chromatids. The rejoining of non-sister chromatids forms chiasmata, which remain intact until t ...
Common Assessment Review
... 4. Describe the shape of the DNA molecule. What types of bonds hold the bases together? Draw a small picture. Be sure to include bases, phosphate groups and sugars. DNA is in the shape of a double helix. Hydrogen bonds hold the bases together. ...
... 4. Describe the shape of the DNA molecule. What types of bonds hold the bases together? Draw a small picture. Be sure to include bases, phosphate groups and sugars. DNA is in the shape of a double helix. Hydrogen bonds hold the bases together. ...
SexChrom_posted
... to violent or antisocial behav ior, based on eleva ted incidenc e of 47,XYY a mong inca rcerated men. Now though t to be due to higher incidence of moderate mental retardation than for XY males. ...
... to violent or antisocial behav ior, based on eleva ted incidenc e of 47,XYY a mong inca rcerated men. Now though t to be due to higher incidence of moderate mental retardation than for XY males. ...
Mitosis
... 30. Males with Klinefelter syndrome have an extra X chromosome (karyotype 47,XXY). 31. Sickle cell anemia is a disorder that involves codominant alleles and it results in production of abnormal red blood cells. 32. What does the following picture show? Crossing over 33. The farther apart two genes a ...
... 30. Males with Klinefelter syndrome have an extra X chromosome (karyotype 47,XXY). 31. Sickle cell anemia is a disorder that involves codominant alleles and it results in production of abnormal red blood cells. 32. What does the following picture show? Crossing over 33. The farther apart two genes a ...
Cell Division
... Spindles break apart and disappear Nucleolus becomes visible in each daughter ...
... Spindles break apart and disappear Nucleolus becomes visible in each daughter ...
STUDY GUIDE EXAM I
... 5. How does DNA replication occur? What are the enzymes involved? What is the difference between a leading and a lagging strand? What does it mean that DNA replication is semi conservative? 6. What is transcription? What are the enzymes called? Where does it start on the DNA strand? Where does it oc ...
... 5. How does DNA replication occur? What are the enzymes involved? What is the difference between a leading and a lagging strand? What does it mean that DNA replication is semi conservative? 6. What is transcription? What are the enzymes called? Where does it start on the DNA strand? Where does it oc ...
BioSc 231 Exam 4 2005
... (2 pts) The protein produced by the above mRNA functions as a signal molecule and scientists predict that the Lysine (K) in this protein is necessary for its function. What mutation(s) would you make to test this hypothesis? (Note, the typical strategy for determining the function of a single amino ...
... (2 pts) The protein produced by the above mRNA functions as a signal molecule and scientists predict that the Lysine (K) in this protein is necessary for its function. What mutation(s) would you make to test this hypothesis? (Note, the typical strategy for determining the function of a single amino ...
PRACTICE EXAM 3 – Some of this may look familiar, but the exam is
... 3. The important roles of cell division—in particular, mitosis—are _________________, ______________________, and _______________________. 4. The two parts of the cell cycle are ___________ and ___________. During the phase that takes most of the time, DNA ________________ and during the other phase ...
... 3. The important roles of cell division—in particular, mitosis—are _________________, ______________________, and _______________________. 4. The two parts of the cell cycle are ___________ and ___________. During the phase that takes most of the time, DNA ________________ and during the other phase ...
Cell Cycle
... End with four cells, ½ the chromosomes in each cell Gametes (sex cells) o Now can share genetic information ...
... End with four cells, ½ the chromosomes in each cell Gametes (sex cells) o Now can share genetic information ...
IB Biology Topic 4: Genetics (15 hours)
... transcription and translation, using the example of sickle-cell anemia. GAG has mutated to _______________ Because of this mutation, glutamic acid is replaced by __________ How does this cause sickle cell anemia? ...
... transcription and translation, using the example of sickle-cell anemia. GAG has mutated to _______________ Because of this mutation, glutamic acid is replaced by __________ How does this cause sickle cell anemia? ...
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).