Genetics
... • all differences in organisms are not caused by genetics • some are caused by the environment • the conditions under which the animals are raised ...
... • all differences in organisms are not caused by genetics • some are caused by the environment • the conditions under which the animals are raised ...
Slide 1
... cells look like those of higher plants (ex. Ulva) in cross-section appear to be parenchymatous but really made up of interwoven filaments May see some differentiation ...
... cells look like those of higher plants (ex. Ulva) in cross-section appear to be parenchymatous but really made up of interwoven filaments May see some differentiation ...
Exam 3 Quick reference guide Define the biological species concept
... i. Some (mainly rods) produce spores- why? 19. Distinguish between these bacteria: a. Obligate aerobes = b. Obligate anaerobes = c. Facultative anaerobes = 20. Pathogenic bacteria: cause disease in the host they infect due to some molecules they possess or produce. Most pathogenic bacteria produce p ...
... i. Some (mainly rods) produce spores- why? 19. Distinguish between these bacteria: a. Obligate aerobes = b. Obligate anaerobes = c. Facultative anaerobes = 20. Pathogenic bacteria: cause disease in the host they infect due to some molecules they possess or produce. Most pathogenic bacteria produce p ...
Behavioral Genetics
... 2. For traits determined by one pair of genes, if the alleles are different, the individual is heterozygous for the trait. a. The dominant gene is the one that is expressed when alleles are different and only one of the genes is expressed. b. The recessive gene is the one that is masked when alleles ...
... 2. For traits determined by one pair of genes, if the alleles are different, the individual is heterozygous for the trait. a. The dominant gene is the one that is expressed when alleles are different and only one of the genes is expressed. b. The recessive gene is the one that is masked when alleles ...
ch4.1
... moderate-to-serve mental retardation and by such physical signs as a downward-sloping skin fold at the inner corners of the eyes Trisomy 21: another name for Down syndrome, in which ...
... moderate-to-serve mental retardation and by such physical signs as a downward-sloping skin fold at the inner corners of the eyes Trisomy 21: another name for Down syndrome, in which ...
SCIENCE 9 UNIT A BIOLOGICAL DIVERSITY
... Inherited and Non-inherited Characteristics Inherited (heritable) characteristics are traits which are passed on to offspring directly from their parents. These traits are passed on inside the ____________ ___________. Heritable traits include structural and distinguishing characteristics such as __ ...
... Inherited and Non-inherited Characteristics Inherited (heritable) characteristics are traits which are passed on to offspring directly from their parents. These traits are passed on inside the ____________ ___________. Heritable traits include structural and distinguishing characteristics such as __ ...
Congratulations, you are going to have a baby
... your spouse will drop your 23 pair of chromosomes to the floor to simulate gametogenesis (sex cell formation). This "dropping your chromosomes" will determine which one of the pair of chromosomes will enter the successful sex cell. Each parent, mom and dad, donate one and only one of each of their 2 ...
... your spouse will drop your 23 pair of chromosomes to the floor to simulate gametogenesis (sex cell formation). This "dropping your chromosomes" will determine which one of the pair of chromosomes will enter the successful sex cell. Each parent, mom and dad, donate one and only one of each of their 2 ...
Document
... Beneficial mutations – allows organism to better survive: provides genetic variation Neutral mutations – neither harmful nor helpful to organism • Mutations can occur in 2 ways: chromosomal mutation or gene/point mutation ...
... Beneficial mutations – allows organism to better survive: provides genetic variation Neutral mutations – neither harmful nor helpful to organism • Mutations can occur in 2 ways: chromosomal mutation or gene/point mutation ...
Chapter 12 PowerPoint
... inherited together Genes on the same chromosome One linkage group for each homologous pair Fruit flies – 4 linkage groups Humans – 23 linkage groups Corn – 10 linkage groups ...
... inherited together Genes on the same chromosome One linkage group for each homologous pair Fruit flies – 4 linkage groups Humans – 23 linkage groups Corn – 10 linkage groups ...
You Light Up My Life
... 1. The characteristics of this condition are: a. Either parent can carry the recessive allele on an autosome. b. Heterozygotes are symptom-free; homozygotes are affected. c. Two heterozygous parents have a 50 percent chance of producing heterozygous children and a 25 percent chance of producing a ho ...
... 1. The characteristics of this condition are: a. Either parent can carry the recessive allele on an autosome. b. Heterozygotes are symptom-free; homozygotes are affected. c. Two heterozygous parents have a 50 percent chance of producing heterozygous children and a 25 percent chance of producing a ho ...
Biology Chapter 14 TEST (2010)
... ____ 35. If nondisjunction occurs during meiosis, a. only two gametes may form instead of four. b. some gametes may have an extra copy of some genes. c. the chromatids do not separate. d. it occurs during prophase. ____ 36. Nondisjunction can involve a. autosomes. b. sex chromosomes. c. homologous ...
... ____ 35. If nondisjunction occurs during meiosis, a. only two gametes may form instead of four. b. some gametes may have an extra copy of some genes. c. the chromatids do not separate. d. it occurs during prophase. ____ 36. Nondisjunction can involve a. autosomes. b. sex chromosomes. c. homologous ...
Clicker review
... This could be an example of ____________ A complete dominance B polygenic inheritance C incomplete dominance D Both A and B E Both B and C 3 Cystic fibrosis affects the lungs, pancreas, digestive system, and other organs resulting in symptoms ranging from breathing difficulties to recurrent infectio ...
... This could be an example of ____________ A complete dominance B polygenic inheritance C incomplete dominance D Both A and B E Both B and C 3 Cystic fibrosis affects the lungs, pancreas, digestive system, and other organs resulting in symptoms ranging from breathing difficulties to recurrent infectio ...
Tiktaalik
... • Humans have much smaller appendices than herbivorous animals. • In herbivorous animals, but not in humans, the appendix serves to aid digestion of plant material. • It is still unclear what function, if any, the appendix serves in humans. ...
... • Humans have much smaller appendices than herbivorous animals. • In herbivorous animals, but not in humans, the appendix serves to aid digestion of plant material. • It is still unclear what function, if any, the appendix serves in humans. ...
Intro to Genetics
... 15. Each offspring cell produced by binary fission (mitosis) contains a. half the chromosomes of the original cell. b. twice as many chromosomes as the original cell had. c. an identical copy of the original cell’s chromosome. d. an independent assortment of the original cell’s chromosomes. 16. Cros ...
... 15. Each offspring cell produced by binary fission (mitosis) contains a. half the chromosomes of the original cell. b. twice as many chromosomes as the original cell had. c. an identical copy of the original cell’s chromosome. d. an independent assortment of the original cell’s chromosomes. 16. Cros ...
Two Trait Crosses
... controlling the two different traits are located on nonhomologous chromosomes. During meiosis, nonhomologous chromosomes assort independently. This means that each of the chromosomes of any pair of homologous chromosomes has an equal probability of ending up in a gamete with either chromosome from a ...
... controlling the two different traits are located on nonhomologous chromosomes. During meiosis, nonhomologous chromosomes assort independently. This means that each of the chromosomes of any pair of homologous chromosomes has an equal probability of ending up in a gamete with either chromosome from a ...
Unit 2 Homework
... Q18. The figure below shows the life cycle of Plasmodium falciparum, a parasite that causes malaria in humans. The figure also shows stages in its life cycle targeted by two human vaccines, the zygote stage by Pfs25 and the sporozoite stage by RTS,S. Pfs25 is a protein produced by P. falciparum whe ...
... Q18. The figure below shows the life cycle of Plasmodium falciparum, a parasite that causes malaria in humans. The figure also shows stages in its life cycle targeted by two human vaccines, the zygote stage by Pfs25 and the sporozoite stage by RTS,S. Pfs25 is a protein produced by P. falciparum whe ...
File - Mr. Haan`s Science
... A. Chromosomes and Phenotype 1. 2 copies of each autosomal gene affect phenotype a. Inherit 1 set of chromosomes from each parent b. Homologous chromosomes could have same gene but different alleles c. Gene expression often related to whether the gene is on an autosome or sex chromosome ...
... A. Chromosomes and Phenotype 1. 2 copies of each autosomal gene affect phenotype a. Inherit 1 set of chromosomes from each parent b. Homologous chromosomes could have same gene but different alleles c. Gene expression often related to whether the gene is on an autosome or sex chromosome ...
3 Meiosis
... Sex cells are made during meiosis. Meiosis is a copying process that produces cells with half the usual number of chromosomes. Meiosis keeps the total number of chromosomes the same from one generation to the next. In meiosis, each sex cell that is made gets only one chromosome from each homologous ...
... Sex cells are made during meiosis. Meiosis is a copying process that produces cells with half the usual number of chromosomes. Meiosis keeps the total number of chromosomes the same from one generation to the next. In meiosis, each sex cell that is made gets only one chromosome from each homologous ...
Cellular Reproduction
... • Red Blood Cell form in bone marrow and reproduce rapidly to keep up with the need for new cells • Muscle and Nerve cells never reproduce once ...
... • Red Blood Cell form in bone marrow and reproduce rapidly to keep up with the need for new cells • Muscle and Nerve cells never reproduce once ...
Genetic Disorders - Sarah E. Goode STEM Academy
... from parents to their children. All the characteristics you have, such as your eye color, the amount of curl in your hair, and your height, are determined by your genetic ...
... from parents to their children. All the characteristics you have, such as your eye color, the amount of curl in your hair, and your height, are determined by your genetic ...
Exam 3 Material Outline MS Word
... 3. Important in sex determination (Fig. 10.7) a. Individuals with one X and one Y are ___________ and those with two Xs are _____________. b. Human males and females both have 44 autosomes (chromosomes other than sex chromosomes). Because of meiosis, each gamete (egg or sperm) contains one sex chrom ...
... 3. Important in sex determination (Fig. 10.7) a. Individuals with one X and one Y are ___________ and those with two Xs are _____________. b. Human males and females both have 44 autosomes (chromosomes other than sex chromosomes). Because of meiosis, each gamete (egg or sperm) contains one sex chrom ...
Problem Set 2B
... the same amount of detail as we used in class. Show the negative charge on each phosphate group, label the 5’ and 3’ carbon positions with numbers, and show the hydrogen bonding between paired bases with dashed lines (even though they don’t need to be placed accurately with respect to specific atoms ...
... the same amount of detail as we used in class. Show the negative charge on each phosphate group, label the 5’ and 3’ carbon positions with numbers, and show the hydrogen bonding between paired bases with dashed lines (even though they don’t need to be placed accurately with respect to specific atoms ...
Bio 309F
... diagnosis of fetal genetic/developmental disorders at approximately 16 weeks of pregnancy is called A. aminocentesis B. chorionic villus sampling C. cytogenetics D. chromosomal spread E. cell cycle analyses 50. Down syndrome could result from: A. having an extra # 21 chromosome B. being mosaic for c ...
... diagnosis of fetal genetic/developmental disorders at approximately 16 weeks of pregnancy is called A. aminocentesis B. chorionic villus sampling C. cytogenetics D. chromosomal spread E. cell cycle analyses 50. Down syndrome could result from: A. having an extra # 21 chromosome B. being mosaic for c ...
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).