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Ch 6 Formative Test - Meiosis and Mendel
Ch 6 Formative Test - Meiosis and Mendel

... white-flowered, the resulting offspring all had purple flowers. When allowed to self-pollinate, this F generation gave rise to white-flowered plants as well as purple. As a result, Mendel determined that individual traits are a. merged with successive generations. b. lost in the pollination process. ...
I. The Emerging Role of Genetics and Genomics in Medicine
I. The Emerging Role of Genetics and Genomics in Medicine

... 6. Mode of inheritance refers to whether a trait is dominant or recessive, autosomal or carried on a sex chromosome. 7. An autosomal condition is equally likely to affect either sex. 8. X-linked characteristics affect males much more than females. 9. Recessive conditions can skip a generation becaus ...
Learning Guide: Origins of Life
Learning Guide: Origins of Life

... o Define the following terms as you read: genes, gametes, somatic cells, locus o Describe the difference between sexual and asexual reproduction.  Fertilization and meiosis alternate in sexual life cycles. o Define the following terms as you read: karyotype, homologous chromosomes, sex chromosomes, ...
SR6e Chapter 3
SR6e Chapter 3

... Zygote: Union of sperm & ovum at conception ...
Chapter 5: Heredity Section1- Genetics
Chapter 5: Heredity Section1- Genetics

... Color, Skin tone, & Handspan are traits produced by a combination of genes. ...
Unit 4 – Genetics Heredity Test Study Guide Chapter 13
Unit 4 – Genetics Heredity Test Study Guide Chapter 13

... 3. When studying linked genes, how do you explain the appearance of progeny that do not share either parental phenotype? 4. How can recombination data be used to map genetic loci? 5. Use the following recombination frequencies to create a linkage map for the following genes on the same chromosome: j ...
Chapter 16 Review
Chapter 16 Review

... 10. You MUST know how to carry out all types of crosses that we have done.  Monohybrid (single trait)  multiple alleles  Dihybrid (two trait)  sex-linkage  co - dominance  test cross  incomplete dominance 11. distinguish among the different types of chromosome mutations ...
Unit 5 vocab
Unit 5 vocab

... Asexual reproduction in which a stem leaf or root will produce a new individual when detached from a parent plant ...
x2-2 genetics F12
x2-2 genetics F12

... The light-sensitive cells in the eyes don’t function properly. Mostly found in males Prevalence: 5-10% of males A test for red-green colorblindness ...
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Genetics - University of Puget Sound

... Considered low-risk as long as nonrepeated exposure- possible low birth weight ...
Karyotypes - Groch Biology
Karyotypes - Groch Biology

... http://www.futurehumanevolution.com/wp-content/uploads/chromosomesgenes-nucleotides-dna-base-pairs-and-the-future-of-human-evolution1.png ...
Sex and the Chromosome
Sex and the Chromosome

... XY system • Only relatively short segments at the either end of the Y are homologous to the X – X & Y rarely crossover ...
Mendel Power Point BLANK version
Mendel Power Point BLANK version

... • Gene sequence that is repeated several to hundreds of times • Duplications occur in normal chromosomes • May have adaptive advantage – Useful mutations may occur in copy ...
29 inheritance
29 inheritance

... may only be expressed in combination with sex-inked genes (bird plumage), or when other compensating genes shut down with age (gray hair). External environment: A gene might only be expressed at a given temperature, or might be activated by chemicals or viruses. Multifactorial: Genes can be polygeni ...
Genetics Terminology List - Arabian Horse Association
Genetics Terminology List - Arabian Horse Association

... Genetic code - the instructions in a gene that tell the cell how to function. Genetic marker - a gene or other identifiable portion of DNA whose inheritance can be followed. Heterozygote - an individual having two different alleles of a particular gene; the individual can pass either allele to their ...
CSM 101 Fall 2010 Timeline
CSM 101 Fall 2010 Timeline

... e. Nucleosome- The “beads on a string”; a segment of DNA wound around 8 histones. f. Histone –The small protein that binds to the DNA, contributing to the chromatin structure g. Centromere- The central region that joins two sister chromatids h. Centrosome- The microtubule organizing center present i ...
CSM 101 Fall 2010 Timeline
CSM 101 Fall 2010 Timeline

... e. Nucleosome- The “beads on a string”; a segment of DNA wound around 8 histones. f. Histone –The small protein that binds to the DNA, contributing to the chromatin structure g. Centromere- The central region that joins two sister chromatids h. Centrosome- The microtubule organizing center present i ...
Sex Chromosomes
Sex Chromosomes

... – what percentage of female offspring will express if, • mate is hemizygous for the recessive allele? • mate is hemizygous for the dominant allele? ...
A aa - Albinizms
A aa - Albinizms

...  OCA-1, OCA-2, and OCA-3 • OCA-1: occurs on chromosome 11 •OCA-2: occurs on chromosome 15 ...
Biology 303 EXAM II 3/14/00 NAME
Biology 303 EXAM II 3/14/00 NAME

... Trisomy 21, or Down syndrome, occurs when there is a normal diploid chromosomal complement of 46 chromosomes plus one (extra) chromosome #21. Such individuals therefore have 47 chromosomes. While there is impaired fertility of both sexes, females are more likely to be fertile than males. Assume that ...
Slide 1
Slide 1

... produce variations of a trait (FOR EXAMPLE: an allele for black fur and an allele for brown fur in mice – both affect fur color, but produce different colors) •Most organisms have 2 copies of each chromosome (one from the mother and the other from the father). Organisms with 2 copies of each chromos ...
Unit 2 Homework
Unit 2 Homework

... in humans. The figure also shows stages in its life cycle targeted by two human vaccines, the zygote stage by Pfs25 and the sporozoite stage by RTS,S. Pfs25 is a protein produced by P. falciparum when in the mosquito’s gut. It allows the mature zygote stage of the parasite to get through the gut wal ...
Prof. Kamakaka`s Lecture 11 Notes
Prof. Kamakaka`s Lecture 11 Notes

... Hemizygosity from large deletions results in lethalityeven the smallest cytologically defined deletions take out tens of 1,000's of bps and are likely to remove essential genes. ...
Unit Plan Assessments
Unit Plan Assessments

... 1. The different forms of a gene are called_________. a. Traits b. Alleles c. Hybrids d. Homozygous 2. Who is the father of genetics? a. Einstein b. Darwin c. Watson d. Mendel 3. If a pea plant’s alleles for height are tt, what is true of its parents? a. Both parents contributed a dominant allele b. ...
Meiosis and Sexual Reproduction Notes
Meiosis and Sexual Reproduction Notes

... Before Meiosis lets look back at Mitosis ...
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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.)
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