Chromosomal Basis of Inheritance
... heterozygous genotype is intermediate in appearance • Codominance: each allele in the genotype for a particular gene will be expressed in the ...
... heterozygous genotype is intermediate in appearance • Codominance: each allele in the genotype for a particular gene will be expressed in the ...
Section 6.1 Study Guide
... Homologous chromosomes are two chromosomes (one from the mother, the other from the father) that have the same length and general appearance. They have copies of the same genes; however, the copies may differ. 6. What is the difference between an autosome and a sex chromosome? Autosomes are chromoso ...
... Homologous chromosomes are two chromosomes (one from the mother, the other from the father) that have the same length and general appearance. They have copies of the same genes; however, the copies may differ. 6. What is the difference between an autosome and a sex chromosome? Autosomes are chromoso ...
The Chromosomal Basis of Inheritance
... Two non-homologous chromosomes have genes in the following order: A-B-C-D-E-F-G-H-I-J & M-N-O-P-Q-R-S-T deletion inversion translocation What chromosome alterations have occurred if daughter cells have a gene sequence of A-B-C-O-P-Q-G-J-I-H on the first chromosome? ...
... Two non-homologous chromosomes have genes in the following order: A-B-C-D-E-F-G-H-I-J & M-N-O-P-Q-R-S-T deletion inversion translocation What chromosome alterations have occurred if daughter cells have a gene sequence of A-B-C-O-P-Q-G-J-I-H on the first chromosome? ...
Date
... 1. If the father is heterozygous for eye color, and the mother is also heterozygous for eye color what is the chance that the offspring will inherit two homozygous recessive chromosome? (1pt) 1 in ____ 2. This problem concerns three traits found on three different chromosomes in pea plants. The firs ...
... 1. If the father is heterozygous for eye color, and the mother is also heterozygous for eye color what is the chance that the offspring will inherit two homozygous recessive chromosome? (1pt) 1 in ____ 2. This problem concerns three traits found on three different chromosomes in pea plants. The firs ...
ITMI2009_028
... 61, 65 and 97 putative recombinants were selected in the families 2A6Nv, 2B-6Nv and 2D-6Nv before the meiosis stage. Anthers at the MI stage of meiosis were collected on each plant. Meiotic analysis revealed that most selected plants were double monosomics or addition plants. Only two plants in the ...
... 61, 65 and 97 putative recombinants were selected in the families 2A6Nv, 2B-6Nv and 2D-6Nv before the meiosis stage. Anthers at the MI stage of meiosis were collected on each plant. Meiotic analysis revealed that most selected plants were double monosomics or addition plants. Only two plants in the ...
Chromosomal Basis of Inheritance
... with a large number of traits. Y chromosome - much smaller chromosome with only a few traits. ...
... with a large number of traits. Y chromosome - much smaller chromosome with only a few traits. ...
Sex Linkage Reciprocal Cross Exceptions
... • X chromosome to be inactivated is randomly chosen from the maternal and paternal X chromosome in an event that is independent from cell to cell. ...
... • X chromosome to be inactivated is randomly chosen from the maternal and paternal X chromosome in an event that is independent from cell to cell. ...
Pedigrees and Karyotypes
... Female: 47, XX, +21 Most common, Trisomy 21 (down syndrome) 1 in 800 babies born in U.S. with Trisomy 21. Mild to severe mental retardation Increased susceptibility to many diseases and a higher frequency of other birth defects. ...
... Female: 47, XX, +21 Most common, Trisomy 21 (down syndrome) 1 in 800 babies born in U.S. with Trisomy 21. Mild to severe mental retardation Increased susceptibility to many diseases and a higher frequency of other birth defects. ...
Pedigrees and Karyotypes - Social Circle City Schools
... Ex. 46 Female: 46, XX Normal Human ● Secondly, list the type of sex46, XY Normal Human Male: chromosomes found in the karyotype. Ex. XX ● Lastly, list the any abnormalities at the appropriate chromosome number. ...
... Ex. 46 Female: 46, XX Normal Human ● Secondly, list the type of sex46, XY Normal Human Male: chromosomes found in the karyotype. Ex. XX ● Lastly, list the any abnormalities at the appropriate chromosome number. ...
Chapter 15 Chromosomal Inheritance
... • Males - XY Females - XX • Comment - The X and Y chromosomes are a homologous pair, but only for a small region at one tip. ...
... • Males - XY Females - XX • Comment - The X and Y chromosomes are a homologous pair, but only for a small region at one tip. ...
sex-linked genes
... • PRADER-WILLI SYNDROME AND ANGELMAN SYDROME-SAME DELETION ON #15; SYMPTOMS DIFFER DEPENDING ON WHICH PARENT GAVE THE GENE • FRAGILE-X SYNDROME - AN ABNORMAL X CHROMOSOME, THE TIP HANGS ON THE REST OF THE CHROMOSOME BY A THIN DNA THREAD; MOST COMMON GENETIC CAUSE OF MENTAL RETARDATION; MORE LIKELY T ...
... • PRADER-WILLI SYNDROME AND ANGELMAN SYDROME-SAME DELETION ON #15; SYMPTOMS DIFFER DEPENDING ON WHICH PARENT GAVE THE GENE • FRAGILE-X SYNDROME - AN ABNORMAL X CHROMOSOME, THE TIP HANGS ON THE REST OF THE CHROMOSOME BY A THIN DNA THREAD; MOST COMMON GENETIC CAUSE OF MENTAL RETARDATION; MORE LIKELY T ...
Types of genetic tests
... skin cells from mouth (ie for non-cancer related diagnoses) Prenatal diagnostic karyotype chorionic villi sampling (CVS) amniocentesis ...
... skin cells from mouth (ie for non-cancer related diagnoses) Prenatal diagnostic karyotype chorionic villi sampling (CVS) amniocentesis ...
Slide 1
... A DNA segment has information for making the protein hemoglobin, which carries oxygen in your red blood cells One allele will give information for producing normal hemoglobin -Another allele (ONLY 1 base different) produces hemoglobin with 1 different amino acid This difference makes the hemoglobin ...
... A DNA segment has information for making the protein hemoglobin, which carries oxygen in your red blood cells One allele will give information for producing normal hemoglobin -Another allele (ONLY 1 base different) produces hemoglobin with 1 different amino acid This difference makes the hemoglobin ...
MUTATIONS
... One cell has an extra chromosome while the other lacks one. During meiosis chromosomes stick together instead of pulling apart Produces an odd number of chromosomes Ex. get 45 or 47- Instead of 46 normal – ...
... One cell has an extra chromosome while the other lacks one. During meiosis chromosomes stick together instead of pulling apart Produces an odd number of chromosomes Ex. get 45 or 47- Instead of 46 normal – ...
Human Chromosomes Mr. Alvarez March 15, 2013
... • Human genes associated with color vision are located on the X chromosome • Most common type of color blindness is RedGreen color blindness – Effects 1 in 10 males – Effects 1 in 100 females ...
... • Human genes associated with color vision are located on the X chromosome • Most common type of color blindness is RedGreen color blindness – Effects 1 in 10 males – Effects 1 in 100 females ...
Modern Genetics
... Caused by mutation of gene for hemoglobin (red pigment in red blood cells that carries O2 Over time, affected cells become rigid & crescentshaped ...
... Caused by mutation of gene for hemoglobin (red pigment in red blood cells that carries O2 Over time, affected cells become rigid & crescentshaped ...
Assuming that Victoria and/or her descendants were
... Assuming that Victoria and/or her descendants were the ONLY people in Elizabeth II’s ancestry that carried the hemophilia gene, what is the probability that Elizabeth II herself carries it? Answer Zero, unless the gene mutation arose spontaneously. To see why, look at the family tree above. The muta ...
... Assuming that Victoria and/or her descendants were the ONLY people in Elizabeth II’s ancestry that carried the hemophilia gene, what is the probability that Elizabeth II herself carries it? Answer Zero, unless the gene mutation arose spontaneously. To see why, look at the family tree above. The muta ...
Meiosis_Intro
... • Understand the process of meiosis • Understand the need to undergo meiosis as sexual organisms – to produce change or variation ...
... • Understand the process of meiosis • Understand the need to undergo meiosis as sexual organisms – to produce change or variation ...
14-1 - Fort Bend ISD
... Viruses are often used in gene therapy, because they have the ability to enter a cell’s DNA Virus particles are modified so they do not cause diseases. Then a DNA fragment containing a replacement gene is spliced to viral DNA. The patient is then infected with the modified gene particles, which shou ...
... Viruses are often used in gene therapy, because they have the ability to enter a cell’s DNA Virus particles are modified so they do not cause diseases. Then a DNA fragment containing a replacement gene is spliced to viral DNA. The patient is then infected with the modified gene particles, which shou ...
Human Genetics and Linked Genes
... Major method of speciation in plants As the number of chromosomes increase so does the possible cell size ex: huge strawberries! Often lethal in animals ...
... Major method of speciation in plants As the number of chromosomes increase so does the possible cell size ex: huge strawberries! Often lethal in animals ...
Pre – AP Biology
... • Extra copies of genes on the X chromosome interfere with male sexual development, often preventing the testes from functioning normally and reducing the levels of testosterone. • A shortage of testosterone can lead to delayed or incomplete puberty, breast enlargement (gynecomastia), reduced facial ...
... • Extra copies of genes on the X chromosome interfere with male sexual development, often preventing the testes from functioning normally and reducing the levels of testosterone. • A shortage of testosterone can lead to delayed or incomplete puberty, breast enlargement (gynecomastia), reduced facial ...
Y chromosome
The Y chromosome is one of two sex chromosomes (allosomes) in mammals, including humans, and many other animals. The other is the X chromosome. Y is the sex-determining chromosome in many species, since it is the presence or absence of Y that determines the male or female sex of offspring produced in sexual reproduction. In mammals, the Y chromosome contains the gene SRY, which triggers testis development. The DNA in the human Y chromosome is composed of about 59 million base pairs. The Y chromosome is passed only from father to son. With a 30% difference between humans and chimpanzees, the Y chromosome is one of the fastest evolving parts of the human genome. To date, over 200 Y-linked genes have been identified. All Y-linked genes are expressed and (apart from duplicated genes) hemizygous (present on only one chromosome) except in the cases of aneuploidy such as XYY syndrome or XXYY syndrome. (See Y linkage.)