Unit 5 Notes Outline File
... 1. __________________________ – part of a chromosome is missing Ex.- Cri-du-chat (5), Prader-Willi, Angelman 2. ____________________ – segment moved from one chromosome to another a. ____________ – two short arms break off of different chromosomes, and long arms stick together (14/21) b. __________ ...
... 1. __________________________ – part of a chromosome is missing Ex.- Cri-du-chat (5), Prader-Willi, Angelman 2. ____________________ – segment moved from one chromosome to another a. ____________ – two short arms break off of different chromosomes, and long arms stick together (14/21) b. __________ ...
Meiosis II
... * Offers another form of cell division that allows offspring to have same # of chromosomes as parents. • Meiosis = cell division process which produces gametes containing half the number of chromosomes as a parent’s body cell. * consists of two divisions: Meiosis I & II male gametes = sperm ...
... * Offers another form of cell division that allows offspring to have same # of chromosomes as parents. • Meiosis = cell division process which produces gametes containing half the number of chromosomes as a parent’s body cell. * consists of two divisions: Meiosis I & II male gametes = sperm ...
Gene Linkage PPT
... Sex-Linked Inheritance Patterns About 2,000 genes have been mapped to the X chromosome, and only about a dozen have been mapped to the Y chromosome Females must inherit two copies of a sex-linked recessive allele to express it; males only need ONE COPY of the allele to express it ...
... Sex-Linked Inheritance Patterns About 2,000 genes have been mapped to the X chromosome, and only about a dozen have been mapped to the Y chromosome Females must inherit two copies of a sex-linked recessive allele to express it; males only need ONE COPY of the allele to express it ...
Summary Variations in chromosome number, also called as
... originate spontaneously by parthenogenetic development of egg, synergids or antipodal cells or can be artificially produced by distant hybridization and anther / pollen culture. Meiotic bevahiour of haploids is irregular. Haploids are important for production of homozygous diploid lines, production ...
... originate spontaneously by parthenogenetic development of egg, synergids or antipodal cells or can be artificially produced by distant hybridization and anther / pollen culture. Meiotic bevahiour of haploids is irregular. Haploids are important for production of homozygous diploid lines, production ...
DNA
... down to the next generation. • This would be a change in the genetic code. • ATGTTCACCTG • ATGTTGGCCTG ...
... down to the next generation. • This would be a change in the genetic code. • ATGTTCACCTG • ATGTTGGCCTG ...
09ans - Evergreen Archives
... move to one pole during anaphase, leaving one daughter cell with one extra copy and the other daughter cell lacking a copy. Both daughter cells then have an imbalance with respect to the normal gene complement. Too many copies of a set of genes can cause abnormalities, such as Down syndrome. The abs ...
... move to one pole during anaphase, leaving one daughter cell with one extra copy and the other daughter cell lacking a copy. Both daughter cells then have an imbalance with respect to the normal gene complement. Too many copies of a set of genes can cause abnormalities, such as Down syndrome. The abs ...
Sex- Linked Traits
... 1. Gene mutation: affect only one gene. Examples: point and frameshift. 2. Chromosomal mutation: affect the number or structure of chromosomes. Usually involves many, many genes. ...
... 1. Gene mutation: affect only one gene. Examples: point and frameshift. 2. Chromosomal mutation: affect the number or structure of chromosomes. Usually involves many, many genes. ...
The end of the male gene pool?
... compared them with those on the Y chromosomes of chimpanzees and rhesus macaques. The latter split from the human lineage 25m years ago. Hughes found that only one gene had been lost from the human Y chromosome since then. The rapid decline of the Y chromosome seems to have ground to a halt. "We are ...
... compared them with those on the Y chromosomes of chimpanzees and rhesus macaques. The latter split from the human lineage 25m years ago. Hughes found that only one gene had been lost from the human Y chromosome since then. The rapid decline of the Y chromosome seems to have ground to a halt. "We are ...
Karyotyping
... photographic images of the chromosomes are cut out and arranged in homologous pairs by their size and shape. The karyotype can be analyzed to determine the sex of the individual and whether there are any chromosomal abnormalities. For example, the karyotype of a female shows two X chromosomes, and t ...
... photographic images of the chromosomes are cut out and arranged in homologous pairs by their size and shape. The karyotype can be analyzed to determine the sex of the individual and whether there are any chromosomal abnormalities. For example, the karyotype of a female shows two X chromosomes, and t ...
Meiosis and Sexual Life Cycles
... Random fertilization Fusion of any 2 gametes with previous variation = zygote with more ...
... Random fertilization Fusion of any 2 gametes with previous variation = zygote with more ...
SBI 3CW - TeacherWeb
... 10. ______ People may transmit characteristics to their offspring that they do not have themselves. 11. _____ DNA is the basic unit of heredity in all organisms. 12. _____The complementary strand to A-T-C-G-A-G-T-T is A-T-C-G-A-G-T-T. Short Answer 1. The following sequence of letters represents a no ...
... 10. ______ People may transmit characteristics to their offspring that they do not have themselves. 11. _____ DNA is the basic unit of heredity in all organisms. 12. _____The complementary strand to A-T-C-G-A-G-T-T is A-T-C-G-A-G-T-T. Short Answer 1. The following sequence of letters represents a no ...
Document
... 7.1 Chromosomes and Phenotype • The chromosome theory of inheritance follows Mendel’s laws of segregation and independent assortment. • We give much credit to Thomas Hunt Morgan and his work with fruit flies- Drosophilia melanogaster in the early 20th century – Wild vs mutant types – Sex linked gene ...
... 7.1 Chromosomes and Phenotype • The chromosome theory of inheritance follows Mendel’s laws of segregation and independent assortment. • We give much credit to Thomas Hunt Morgan and his work with fruit flies- Drosophilia melanogaster in the early 20th century – Wild vs mutant types – Sex linked gene ...
Chapter 13 PowerPoint.ppt
... • Failure of homologues or sister chromatids to separate properly during meiosis • Aneuploidy – gain or loss of a chromosome – Monosomy – loss – Trisomy – gain – In all but a few cases, do not survive ...
... • Failure of homologues or sister chromatids to separate properly during meiosis • Aneuploidy – gain or loss of a chromosome – Monosomy – loss – Trisomy – gain – In all but a few cases, do not survive ...
Exam 2
... 10. A genetic counselor is working with families with a history of Huntington's Disease (an autosomal dominant disease), sickle cell anemia (an autosomal recessive disease) and hemophilia (a sex-linked recessive disease). As she races to her office, a gust of wind blows the pedigrees describing the ...
... 10. A genetic counselor is working with families with a history of Huntington's Disease (an autosomal dominant disease), sickle cell anemia (an autosomal recessive disease) and hemophilia (a sex-linked recessive disease). As she races to her office, a gust of wind blows the pedigrees describing the ...
Chapter 13 PowerPoint
... • Failure of homologues or sister chromatids to separate properly during meiosis • Aneuploidy – gain or loss of a chromosome – Monosomy – loss – Trisomy – gain – In all but a few cases, do not survive ...
... • Failure of homologues or sister chromatids to separate properly during meiosis • Aneuploidy – gain or loss of a chromosome – Monosomy – loss – Trisomy – gain – In all but a few cases, do not survive ...
Karyotype - Ms. Fuller's Biology Class
... chromosomes found in an individual’s cells Tells you the chromosome number of an organism 46 in humans Tells you the sex of an organism XX = Female XY = Male Can indicate whether or not a chromosomal abnormality is present. ...
... chromosomes found in an individual’s cells Tells you the chromosome number of an organism 46 in humans Tells you the sex of an organism XX = Female XY = Male Can indicate whether or not a chromosomal abnormality is present. ...
Creating a Karyotype: A Chromosome Study
... 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 birth defects or problems caused by improper chromosome numbers in its cells. To prepare a "real" karyotype, cells from a human are "frozen" ...
... 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 birth defects or problems caused by improper chromosome numbers in its cells. To prepare a "real" karyotype, cells from a human are "frozen" ...