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1 Lecture 24 – Bacterial genetics I. Prokaryotes – an overview A
1 Lecture 24 – Bacterial genetics I. Prokaryotes – an overview A

... 1. # recombinants increases with time 2. for each, is a time before which no recombinants 3. intercept with x-axis is time of entry 4. # recombinants reaches max, which decreases as TOE increases G. F’ plasmid 1. F may excise from Hfr 2. sometimes excision imprecise, plasmid includes chromosomal seq ...
14-1, 2 - greinerudsd
14-1, 2 - greinerudsd

... • Just like physical traits, some diseases can be inherited on our chromosomes. • And, just like physical traits, some are X-linked, some are recessive, some are dominant or ...
Haploid (__)
Haploid (__)

... 2) 1940’s-- __________________---worked to discover what the genetic material was made out of--- concluded that it was ___________ ...
No Slide Title
No Slide Title

... DNA sequences, they same chromosomes, and yet they each look and function very differently. Cell differentiation is achieved by changes in gene expression. The differences between this neuron and the lymphocyte depend on the precise control of gene expression. ...
Human Bio Midterm Review, part 1
Human Bio Midterm Review, part 1

... 12. What are the signs of early labor? 13. What is the last stage of labor? Genetics and Cancer 14. Define and give an example of each of the following terms: a. genotype, phenotype, homozygous, heterozygous, allele, dominant, recessive 15. A homozygous dominant blue bird mates with a homozygous whi ...
Genetics Unit Guid ANSWERS
Genetics Unit Guid ANSWERS

... be completing a vocabulary activity using these terms. 1. Meiosis = form of nuclear division that divides a diploid cell into haploid cells, important in forming gametes for sexual reproduction. 2. Heredity = passing of traits from parents to offspring. 3. Genome = all an organism’s genetic material ...
HUMAN GENETICS ARCHITECTURE LEARNING OBJECTIVES
HUMAN GENETICS ARCHITECTURE LEARNING OBJECTIVES

... This often means that one of the parents must also have the same trait, unless it has arisen due to a new mutation. Examples of autosomal dominant traits and disorders are Huntington's disease, and ...
Location on a chromosome that contains the DNA code for a trait.
Location on a chromosome that contains the DNA code for a trait.

... A frog moves to a nearby pond because its own pond is drying up. What changed for the frog to cause it to move? • The environment ...
Reproduction and Heredity
Reproduction and Heredity

... When the egg and sperm cell come together to form a new individual ...
Name
Name

... homolog. Alternative versions of a gene are called alleles. All somatic cells (cells in the body excluding the sperm and egg cells) are diploid. Diploid cells are designated 2N. Haploid cells do not contain homologous chromosome pairs. A haploid cell only contains one member of each homologous chrom ...
Sex-Linked Genes
Sex-Linked Genes

... - A male has an XY pair, so a sperm can have either an X or a Y. - A female has an XX pair, so an egg always has an X chromosome. The father determines the sex of the baby. ...
Genetics and Heredity
Genetics and Heredity

... • People with CF don’t produce the protein to control mucus production. Both genes are defected (recessive). Scientist insert working copies of gene into harmless viruses. The engineered viruses can be sprayed into the lungs of the patients. • Gene therapy works in hemophilia by using DNA as the dru ...
Deoxyribonucleic Acid (DNA)
Deoxyribonucleic Acid (DNA)

... Deoxyribonucleic Acid (DNA) Deoxyribonucleic acid (DNA) is the chemical compound that contains the instructions needed to develop and direct the activities of nearly all living organisms. DNA molecules are made of two twisting, paired strands, often referred to as a double helix. Each DNA strand is ...
Chromosome rearrangements in sublines of human embryonic stem
Chromosome rearrangements in sublines of human embryonic stem

Chromosomal Abnormalities
Chromosomal Abnormalities

... mother's egg and the other sheet represents the chromosomes from your father's sperm. You should use one pencil color for your mother and another color for your father. (Remember males have an X chromosome from their mother and a Y chromosome from their father. Females have two X chromosomes, one fr ...
Mutation and Genetic Change
Mutation and Genetic Change

... gene ends up on a completely different chromosome ...
Lab_36 - PCC - Portland Community College
Lab_36 - PCC - Portland Community College

... • The control by a single gene of several distinct and seemingly unrelated phenotypic effects. • Example: PKU (phenylketonuria). • This disease causes mental retardation and reduced hair and skin pigmentation. • The cause is a mutation in a single gene that codes for the enzyme phenylalanine hydroxy ...
Lab_36_old - PCC - Portland Community College
Lab_36_old - PCC - Portland Community College

... different loci acting in tandem • Results in continuous phenotypic variation between two extremes • Examples: skin color, eye color, and height • Although we think of eye color as simple dominant/recessive, there are many genes that code for eye color, which is why your eyes are not usually the exac ...
Study Guide for the LS
Study Guide for the LS

...  probability: the mathematical chance that an event will occur  phenotype: an organism’s inherited physical appearance (blue eyes, tall, curly hair)  genotype: an organism’s inherited combination of alleles (BB or Tt)  alleles: two forms of the same gene (represented by letters such as TT, Tt, o ...
chromosome
chromosome

... Different genes tell our bodies ______ things . We have ______ copies of every gene. ______ in our genes cause problems. different two ...
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I. Genetics

... number in cells is cut in half - homologous pairs of chromosomes are separated - produces gametes - occurs in 2 stages: ...
Exam 4 Review - Iowa State University
Exam 4 Review - Iowa State University

... 1. Albinism (lack of skin pigmentation) is caused by a recessive autosomal allele. Persons who are heterozygous for albinism are carriers. Persons who are homozygous recessive have the disease. If a person who does not have the disease and is not a carrier marries a carrier for the disease, what is ...
Name: : ___________Period
Name: : ___________Period

... 17. An organism with two like genes for a trait is said to be ________________ 18. Most of the genes for sex-linked traits are carried on the _______________ 19. A sperm cell can contain_________________________________ 20. A word that means the same as homozygous is _______ 21. A word that means th ...
Chromosomes and Cell Division!
Chromosomes and Cell Division!

... Mitosis: makes exact copies of cell, used for repair, replacement, growth and development. Good when you need to make an exact copy of cells Happens in ALL body cells (autosomes) Meiosis: makes copies of the cell that are haploid (1/2 of the chromosomes) so that each paent has equal genetic input in ...
Jeopardy
Jeopardy

... • Answer: A) 23 chromosome pairs B) 46 chromosomes • BONUS 50 POINTS: It is the 23rd chromosome pair that determines sex. What chromosome pair results in a female and what chromosome pair results in a male? • Answer: Female=(XX), Male=(XY) ...
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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.
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