Fruit Flies…
... Each homologous pair of chromosomes carries a number of genes. The alleles on a chromosome form a linkage group because they tend to go together into the gametes. This simplified chromosome map shows the relative positions of some of the genes on Drosophila chromosome 2. the distances between the ge ...
... Each homologous pair of chromosomes carries a number of genes. The alleles on a chromosome form a linkage group because they tend to go together into the gametes. This simplified chromosome map shows the relative positions of some of the genes on Drosophila chromosome 2. the distances between the ge ...
Polygenic Inheritance
... –Genetic Disorders that are caused by _________________ genes –Such disorders occur when both parents are __________________ –Heterozygous parents show no ________________________ –Child gets disorder when each _______________ passes a recessive alleles to offspring ...
... –Genetic Disorders that are caused by _________________ genes –Such disorders occur when both parents are __________________ –Heterozygous parents show no ________________________ –Child gets disorder when each _______________ passes a recessive alleles to offspring ...
Molecular Basis for Relationship between Genotype and Phenotype
... Molecular Basis for Relationship between Genotype and Phenotype ...
... Molecular Basis for Relationship between Genotype and Phenotype ...
Single gene disorders
... • X-linked hypophosphatemic rickets, also called vitamin D-resistant rickets, in which ability of kidney tubules to reabsorb filtered phosphate is impaired • Serum phosphate level is less depressed and rickets less severe in heterozygous females as compared to affected males • The defective gene pro ...
... • X-linked hypophosphatemic rickets, also called vitamin D-resistant rickets, in which ability of kidney tubules to reabsorb filtered phosphate is impaired • Serum phosphate level is less depressed and rickets less severe in heterozygous females as compared to affected males • The defective gene pro ...
Chapter 14 Human Genetics
... chromosomes are switched off forming a region in the nucleus known as a bar body ▫ In calico cats, a gene that controls the color of coat spots is on the X chromosome ▫ In different parts of the body, different X chromosomes are switched off – making it a mixture of orange and black ...
... chromosomes are switched off forming a region in the nucleus known as a bar body ▫ In calico cats, a gene that controls the color of coat spots is on the X chromosome ▫ In different parts of the body, different X chromosomes are switched off – making it a mixture of orange and black ...
Depat.Anato Genetic/lec 5 Dr.sarab H. 2015 Sex Determination in Man
... In other words, the inactivation of X chromosome is a random phenomenon. This fact has been demonstrated in human diseases linked to X chromosome. The Lesch-Nyhan syndrome, in which a deficiency of one enzyme of the purine metabolism (i.e., hypoxanthineguanine phosphoribosyl transferase) produces me ...
... In other words, the inactivation of X chromosome is a random phenomenon. This fact has been demonstrated in human diseases linked to X chromosome. The Lesch-Nyhan syndrome, in which a deficiency of one enzyme of the purine metabolism (i.e., hypoxanthineguanine phosphoribosyl transferase) produces me ...
Meiosis
... • Put cells in hypotonic solution to make them swell up and then centrifuge them again to separate the one that are swollen. • Stain and examine cells and take a picture of the chromosomes inside the cell • Compare the chromosome size, shape and number to a “normal” karyotype to see if any defects ...
... • Put cells in hypotonic solution to make them swell up and then centrifuge them again to separate the one that are swollen. • Stain and examine cells and take a picture of the chromosomes inside the cell • Compare the chromosome size, shape and number to a “normal” karyotype to see if any defects ...
Sutton-Boveri theory: The chromosome theory of inheritance
... Inheritance of X-linked recessive disorders almost exclusively males affected: • one copy of the mutant allele is sufficient, because men are hemizygous for all X-chromosomal genes women are rarely affected: • two copies of the mutant allele are required, one from hemizygous (sick) father + one fro ...
... Inheritance of X-linked recessive disorders almost exclusively males affected: • one copy of the mutant allele is sufficient, because men are hemizygous for all X-chromosomal genes women are rarely affected: • two copies of the mutant allele are required, one from hemizygous (sick) father + one fro ...
Code DNA!
... A single stranded nucleic acid that plays a role in protein synthesis. This is the structure in the cell nucleus that houses a cell's genetic information. This holds an organisms hereditary information. These are complex proteins that speed up chemical reactions by lowering the amount of energy need ...
... A single stranded nucleic acid that plays a role in protein synthesis. This is the structure in the cell nucleus that houses a cell's genetic information. This holds an organisms hereditary information. These are complex proteins that speed up chemical reactions by lowering the amount of energy need ...
14.1 Human Chromosomes 392-397
... 11. Use your Punnett square to explain why a female with one c allele has normal color vision but a male with one c allele is colorblind. ...
... 11. Use your Punnett square to explain why a female with one c allele has normal color vision but a male with one c allele is colorblind. ...
BIOLOGY Chapter 10: Patterns of Inheritance Name: Section Goal
... 1. When genes are located on separate chromosomes, they sort independently of each other during meiosis, what happens when genes are located on the same chromosome? ...
... 1. When genes are located on separate chromosomes, they sort independently of each other during meiosis, what happens when genes are located on the same chromosome? ...
Traits: The Puppeteering of Genetics
... Example include height, weight, and skin color, cancer risk, or any trait in which multiple factors come into play (generally quantitative values) ...
... Example include height, weight, and skin color, cancer risk, or any trait in which multiple factors come into play (generally quantitative values) ...
The Chromosomal Basis for Inheritance Thomas Hunt Morgan Early
... Genes are located on specific chromosomes at specific loci (locations). There are many genes on a single chromosome. Genes can be linked to various degrees (i.e. they can be inherited together if they are located on the same chromosome.) ...
... Genes are located on specific chromosomes at specific loci (locations). There are many genes on a single chromosome. Genes can be linked to various degrees (i.e. they can be inherited together if they are located on the same chromosome.) ...
Chromosomal Basis of Inheritance
... • N represents color-blind gene • Loci carried on sex (X) chromosomes • Muscular dystrophy and hemophilia are similar examples ...
... • N represents color-blind gene • Loci carried on sex (X) chromosomes • Muscular dystrophy and hemophilia are similar examples ...
Slide 1
... ** Significance of Mutations: Some have little to no effect on gene expression or protein function. (Example: a substitution that doesn’t change the amino acid). Harmful changes- disrupt normal activities (many related to cancer). Some are actually useful/beneficial (example- crop plants). ...
... ** Significance of Mutations: Some have little to no effect on gene expression or protein function. (Example: a substitution that doesn’t change the amino acid). Harmful changes- disrupt normal activities (many related to cancer). Some are actually useful/beneficial (example- crop plants). ...
CHAPTER 14 VOCAB
... co- together (codominance: phenotype in which both dominant alleles are expressed in the heterozygote) di- two (dihybrid cross: a breeding experiment in which parental varieties differing in two traits are mated) epi- beside; -stasis standing (epistasis: a phenomenon in which one gene alters the exp ...
... co- together (codominance: phenotype in which both dominant alleles are expressed in the heterozygote) di- two (dihybrid cross: a breeding experiment in which parental varieties differing in two traits are mated) epi- beside; -stasis standing (epistasis: a phenomenon in which one gene alters the exp ...
Vocab table - Genetics and variation teacher
... A mutation in a chromosome where a section is removed, or in a gene, where one of the bases is removed from the sequence ...
... A mutation in a chromosome where a section is removed, or in a gene, where one of the bases is removed from the sequence ...
Review of relevant topics prior to “Linkage” lectures
... DNA as it exists in the cell- normally vs. metaphase; w/ respect to chromosomes ...
... DNA as it exists in the cell- normally vs. metaphase; w/ respect to chromosomes ...
3 Genetics - Kerboodle
... Diploid a cell containing two sets of chromosomes (2n), one from each parent. Down syndrome a human genetic disease resulting from having an extra chromosome 21 (characterized by having a delay in mental development). Gametes one of two haploid reproductive cells, egg or sperm, whose union is necess ...
... Diploid a cell containing two sets of chromosomes (2n), one from each parent. Down syndrome a human genetic disease resulting from having an extra chromosome 21 (characterized by having a delay in mental development). Gametes one of two haploid reproductive cells, egg or sperm, whose union is necess ...
Meiosis and Sex
... • Chromosome Theory of Inheritance: – Genes located on chromosomes – accounts for inheritance patterns ...
... • Chromosome Theory of Inheritance: – Genes located on chromosomes – accounts for inheritance patterns ...
Ch. 10.4: Meiosis & Mendel`s Principles
... If genes on diff. Chromosomes did NOT sort independently, then yellow smooth and green wrinkled parents could not produce yellow winkled or green smooth offspring. ...
... If genes on diff. Chromosomes did NOT sort independently, then yellow smooth and green wrinkled parents could not produce yellow winkled or green smooth offspring. ...
LN 11Variation in Chromosome Number and Structure
... 3. understand how changes in chromosome number arise, as well as how such changes lead to genetic defects. 4. be able to distinguish between four major types of chromosome structural aberrations: (deletions, duplications, inversions, translocations). ...
... 3. understand how changes in chromosome number arise, as well as how such changes lead to genetic defects. 4. be able to distinguish between four major types of chromosome structural aberrations: (deletions, duplications, inversions, translocations). ...
X-inactivation
X-inactivation (also called lyonization) is a process by which one of the two copies of the X chromosome present in female mammals is inactivated. The inactive X chromosome is silenced by its being packaged in such a way that it has a transcriptionally inactive structure called heterochromatin. As nearly all female mammals have two X chromosomes, X-inactivation prevents them from having twice as many X chromosome gene products as males, who only possess a single copy of the X chromosome (see dosage compensation). The choice of which X chromosome will be inactivated is random in placental mammals such as humans, but once an X chromosome is inactivated it will remain inactive throughout the lifetime of the cell and its descendants in the organism. Unlike the random X-inactivation in placental mammals, inactivation in marsupials applies exclusively to the paternally derived X chromosome.