Zoo/Bot 3333
... Questions 1-2 pertain to the following. Fertile varieties of the Golana melon are known that contain 14, 28, 42, 56, and 70 chromosomes, respectively. A variety that contains 21 chromosomes exists, but can only be propagated through cuttings. 1. The monoploid number for these Golana melon species is ...
... Questions 1-2 pertain to the following. Fertile varieties of the Golana melon are known that contain 14, 28, 42, 56, and 70 chromosomes, respectively. A variety that contains 21 chromosomes exists, but can only be propagated through cuttings. 1. The monoploid number for these Golana melon species is ...
LB 144: Organismal Biology
... • genes that occur on the same chromosome • In the figure to the right, the SCA1, IDDM1, and EPM2A genes are ...
... • genes that occur on the same chromosome • In the figure to the right, the SCA1, IDDM1, and EPM2A genes are ...
PowerPoint Presentation - LSU Museum of Natural Science
... A male Drosophila from a wild type stock was discovered to have 7 chromosomes, whereas the normal 2N number is 8. A karyotype revealed that a nonreciprocal translocation had occurred so that one copy of chromosome 4 had attached to the end of chromosome 2. It lost its centromere. Diagram all member ...
... A male Drosophila from a wild type stock was discovered to have 7 chromosomes, whereas the normal 2N number is 8. A karyotype revealed that a nonreciprocal translocation had occurred so that one copy of chromosome 4 had attached to the end of chromosome 2. It lost its centromere. Diagram all member ...
Checklist unit 15: The Chromosomal Basis of Inheritance
... In this module, you will explore how the arrangement of genes on a chromosome can affect the way the genes are inherited: For genes located on the same chromosome, those further apart from each other have a higher probability of being sorted independently than genes that are in close proximity of ea ...
... In this module, you will explore how the arrangement of genes on a chromosome can affect the way the genes are inherited: For genes located on the same chromosome, those further apart from each other have a higher probability of being sorted independently than genes that are in close proximity of ea ...
Non-Disjunction & Aneuploidy
... An event that occurs occasionally during meiosis in which a pair of chromosomes fail to separate so that the resulting germ (sex) cell has either too many or too few chromosomes ...
... An event that occurs occasionally during meiosis in which a pair of chromosomes fail to separate so that the resulting germ (sex) cell has either too many or too few chromosomes ...
Project Title: Characterization of new genes mediating exchange of
... DNA repair assays developed in my lab to identify new genes required to fix broken chromosomes during normal cell growth and also in meiosis. Two graduate students, Rachel Roberts and Jennifer Summers, with some assistance from undergraduate Jasmine Joseph, performed these experiments and many more ...
... DNA repair assays developed in my lab to identify new genes required to fix broken chromosomes during normal cell growth and also in meiosis. Two graduate students, Rachel Roberts and Jennifer Summers, with some assistance from undergraduate Jasmine Joseph, performed these experiments and many more ...
GENETICS DEFINITIONS
... true breeding produces only one type of gametes e.g. GG, gg,TT,tt. Gamete ...
... true breeding produces only one type of gametes e.g. GG, gg,TT,tt. Gamete ...
Reproduction in Animals
... by which organisms reproduce? • Asexual and sexual • What is the difference? – Asexual is one celled organisms that produce another organism from one parent – Sexual comes from a male and a female ...
... by which organisms reproduce? • Asexual and sexual • What is the difference? – Asexual is one celled organisms that produce another organism from one parent – Sexual comes from a male and a female ...
Variation and Evolution notes
... 1) Segregation of alleles and Independent Assortment • Recombination can happen during Prophase I when alleles separate from each other. • Members of a chromosome pair move to different of the cells independently of each other. Independent Assortment ...
... 1) Segregation of alleles and Independent Assortment • Recombination can happen during Prophase I when alleles separate from each other. • Members of a chromosome pair move to different of the cells independently of each other. Independent Assortment ...
6.3 Chromosomes structure — Further questions Q1. Bk Ch6 S6.3
... Y-linked inheritance refers to the inheritance of genes carried on the Y chromosome. The Y chromosome carries fewer genes than the X chromosome and most of these genes are involved in the determination of sex and fertility in males. However, there are some other characteristics determined by genes c ...
... Y-linked inheritance refers to the inheritance of genes carried on the Y chromosome. The Y chromosome carries fewer genes than the X chromosome and most of these genes are involved in the determination of sex and fertility in males. However, there are some other characteristics determined by genes c ...
Human Genome
... • Ex. Calico Cats- X chromosome carries the allele for coat color and can carry more than 1 color. The X chromosome is turned off in many different places causing several colors to appear. Anytime you see a cat with multiple colors, it will most likely be female. Males are only 1 color ...
... • Ex. Calico Cats- X chromosome carries the allele for coat color and can carry more than 1 color. The X chromosome is turned off in many different places causing several colors to appear. Anytime you see a cat with multiple colors, it will most likely be female. Males are only 1 color ...
Gene Linkage and Polygenic Traits
... 3 steps – enzyme cuts, swap segments (strands find complementary sequences to join to), ligase enzyme hooks them back together Must be exact switch or frameshift mutation can result ...
... 3 steps – enzyme cuts, swap segments (strands find complementary sequences to join to), ligase enzyme hooks them back together Must be exact switch or frameshift mutation can result ...
human genetics ppt - phsdanielewiczscience
... • Males have extra X chromosomes (Can be XXy, XXXy, or XXXXy) • Average to slight decrease in intelligence • Small testes/can’t have children • Usually not discovered until puberty when don’t mature like peers ...
... • Males have extra X chromosomes (Can be XXy, XXXy, or XXXXy) • Average to slight decrease in intelligence • Small testes/can’t have children • Usually not discovered until puberty when don’t mature like peers ...
Sex-Linked Traits
... All dads have the genotype XY. When sperm cells are made, ________________ _____________________________ ...
... All dads have the genotype XY. When sperm cells are made, ________________ _____________________________ ...
a10 Genetics Non-Mendel
... 4. If linked genes stay together (sort together) during meiosis, why how could any offspring be produced where the linked genes have been shuffled or switched? What process would cause this? When in meiosis does this happen? Would the distance between the two linked genes have any effect on the freq ...
... 4. If linked genes stay together (sort together) during meiosis, why how could any offspring be produced where the linked genes have been shuffled or switched? What process would cause this? When in meiosis does this happen? Would the distance between the two linked genes have any effect on the freq ...
Chapter 13 - IRSC Biology Department
... division when homologous chromosomes or sister chromatids do not separate. a. This is true b. This is false ...
... division when homologous chromosomes or sister chromatids do not separate. a. This is true b. This is false ...
key
... (c) (3 pts) Suggest a situation which could have helped the new chromosome become established. Natural selection in favor of the new rearrangement could counterbalance the selection against its fertility problem. Alternatively, situations in which homozygotes would rapidly arise would help; small po ...
... (c) (3 pts) Suggest a situation which could have helped the new chromosome become established. Natural selection in favor of the new rearrangement could counterbalance the selection against its fertility problem. Alternatively, situations in which homozygotes would rapidly arise would help; small po ...
Exceptions to the Rules
... Genetic recombination • Crossing over Genes that DO NOT assort independently of each other • Genetic maps The further apart 2 genes are, the higher the probability that a crossover will ...
... Genetic recombination • Crossing over Genes that DO NOT assort independently of each other • Genetic maps The further apart 2 genes are, the higher the probability that a crossover will ...
Human Genome Project
... DNA Determine the sequences of the 3 billion chemical bases that make up the human DNA Store this information in databases ...
... DNA Determine the sequences of the 3 billion chemical bases that make up the human DNA Store this information in databases ...
Mutation
... Having an extra copy of this chromosome means that each gene may be producing more protein product than normal. ...
... Having an extra copy of this chromosome means that each gene may be producing more protein product than normal. ...
Heredity 1)Heredity is the ______ of the qualities that were passed
... Females have_____ X chromosomes and Males have one_____ and one ______ chromosome. The mother has only x chromosomes! Males pass either an ____ or _____ chromosome to the child which determined the gender of the child. 18) _________________________ is affected by the genes you inherit and other fact ...
... Females have_____ X chromosomes and Males have one_____ and one ______ chromosome. The mother has only x chromosomes! Males pass either an ____ or _____ chromosome to the child which determined the gender of the child. 18) _________________________ is affected by the genes you inherit and other fact ...
File
... • Males express sex linked traits more frequently than females. (XY vs. XX) • If the gene is found on the X chromosome, it will be expressed in males no matter if it is dominant or recessive. • For females, they must have 2 copies of the gene to express that disorder. ...
... • Males express sex linked traits more frequently than females. (XY vs. XX) • If the gene is found on the X chromosome, it will be expressed in males no matter if it is dominant or recessive. • For females, they must have 2 copies of the gene to express that disorder. ...
Creating a Karyotype: A Chromosome Study
... Creating a Karyotype: A Chromosome Study An examination of the chromosomes of a cell under high magnification can give a lot of information about an organism. If the cells are from an unborn human, its sex can be determined before it is born. It can also be determined if the unborn may have certain ...
... Creating a Karyotype: A Chromosome Study An examination of the chromosomes of a cell under high magnification can give a lot of information about an organism. If the cells are from an unborn human, its sex can be determined before it is born. It can also be determined if the unborn may have certain ...
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.)