doc Summer 2010 Lecture 2
... o Is a heterozygous cross is 2/3 o if had another child, risk of being carrier is ½ risk of having recessive allele is ¾ ...
... o Is a heterozygous cross is 2/3 o if had another child, risk of being carrier is ½ risk of having recessive allele is ¾ ...
41) A Closer Look at Natural Selection
... 41) Fitness and Relative Fitness • The phrases “struggle for existence” and “survival of the fittest” are misleading as they imply direct competition among individuals • Reproductive success is generally more subtle and depends on many factors • Relative fitness is the contribution an individual ma ...
... 41) Fitness and Relative Fitness • The phrases “struggle for existence” and “survival of the fittest” are misleading as they imply direct competition among individuals • Reproductive success is generally more subtle and depends on many factors • Relative fitness is the contribution an individual ma ...
Clinical Genetics
... XX males are phenotypic males with a 46,XX karyotype who usually possess some Y chromosomal sequences translocated to the short arm of the X. Similarly, a proportion of phenotypic females with a 46,XY karyotype have lost the testisdetermining region of the Y chromosome. The SRY gene (sex-determi ...
... XX males are phenotypic males with a 46,XX karyotype who usually possess some Y chromosomal sequences translocated to the short arm of the X. Similarly, a proportion of phenotypic females with a 46,XY karyotype have lost the testisdetermining region of the Y chromosome. The SRY gene (sex-determi ...
Gregor Mendel
... Dominant gene located on 1 of the autosomes (all chromosomes except sex chromosomes) Usually rare, Individual may not live to produce offspring Affected individuals have to carry only 1 dominant gene (can be heterozygous or homozygous) Passed onto both males and females Every person affect ...
... Dominant gene located on 1 of the autosomes (all chromosomes except sex chromosomes) Usually rare, Individual may not live to produce offspring Affected individuals have to carry only 1 dominant gene (can be heterozygous or homozygous) Passed onto both males and females Every person affect ...
Evolutionary Ecology of the Prezygotic Stage
... males is intense (12, 55). There are as- Fig. 2. Female reproductive tract in A. thaliana (micrograph: the presence of multiple pistils per J. M. Escobar Restrepo). Pollen tubes (PT ) germinate on the tonishing parallels between plants and stigma (SG), grow through the style (ST), and deliver the pl ...
... males is intense (12, 55). There are as- Fig. 2. Female reproductive tract in A. thaliana (micrograph: the presence of multiple pistils per J. M. Escobar Restrepo). Pollen tubes (PT ) germinate on the tonishing parallels between plants and stigma (SG), grow through the style (ST), and deliver the pl ...
1 4 SEX CHROMOSOMES AND SEX DETERMINATION 4.1 Sex
... sterile. Other genes on the Y are required for normal fertility. Still another rarity that demonstrates the case: women with an XY karyotype who, despite their Y chromosome, are female because of a destructive mutation in SRY. (A test based on a molecular probe for SRY was used to ensure that potent ...
... sterile. Other genes on the Y are required for normal fertility. Still another rarity that demonstrates the case: women with an XY karyotype who, despite their Y chromosome, are female because of a destructive mutation in SRY. (A test based on a molecular probe for SRY was used to ensure that potent ...
Inheritance PPT
... Randomness of Inheritance First off genetics are random in nature Prior to Mendel’s findings, the most widely accepted thought involved a blending theory of inheritance No way to predict the combination of genes in a gamete Randomness of inheritance is critical from an evolutionary standpoint a ...
... Randomness of Inheritance First off genetics are random in nature Prior to Mendel’s findings, the most widely accepted thought involved a blending theory of inheritance No way to predict the combination of genes in a gamete Randomness of inheritance is critical from an evolutionary standpoint a ...
Speciation and Radiation in African Haplochromine Cichlids
... shown adaptive radiation more often than other percoid relatives and what allows cichlids to specialize rapidly for different feeding niches. ...
... shown adaptive radiation more often than other percoid relatives and what allows cichlids to specialize rapidly for different feeding niches. ...
Pedigree Student Notes
... tend to occur more in one gender or another, while an autosomal trait or disorder tends to affect both genders evenly. ...
... tend to occur more in one gender or another, while an autosomal trait or disorder tends to affect both genders evenly. ...
Study Guide
... altruism. Nevertheless, apparently altruistic behavior is quite common. There are two main explanations for the existence of such behavior: 1) inclusive fitness, where one helps others who share their own alleles, thus indirectly increasing the chance of theirs being passed on. Hamilton’s rule dicta ...
... altruism. Nevertheless, apparently altruistic behavior is quite common. There are two main explanations for the existence of such behavior: 1) inclusive fitness, where one helps others who share their own alleles, thus indirectly increasing the chance of theirs being passed on. Hamilton’s rule dicta ...
Sex-linked single-gene inheritance patterns
... by the individual's sex. This does not imply that the gene is sex-linked. A human example is pattern baldness. The gene's expression is influenced by hormonal levels and only one copy of the baldness allele is sufficient to cause baldness in a man, whereas two copies are needed in a woman. In effect ...
... by the individual's sex. This does not imply that the gene is sex-linked. A human example is pattern baldness. The gene's expression is influenced by hormonal levels and only one copy of the baldness allele is sufficient to cause baldness in a man, whereas two copies are needed in a woman. In effect ...
Exercise 11
... whereas all the males must have a Y-chromosome to be a male, and this Y-chromosome they get from their father. Therefore, any trait linked to the Y- chromosome must be present only in males, and certainly not in any of the females. This is why these traits are also called male-sex limited traits. Al ...
... whereas all the males must have a Y-chromosome to be a male, and this Y-chromosome they get from their father. Therefore, any trait linked to the Y- chromosome must be present only in males, and certainly not in any of the females. This is why these traits are also called male-sex limited traits. Al ...
studyguidechapter15answers2012
... sex chromosome, whereas following meiosis in males each sperm cell has either an X OR Y chromosome. 10B. Which gender M/F determines the sex of offspring in mammals? Male 11. Your friend Bill has a “sex-linked” disease. Which chromosome, X or Y, is more likely to contain the mutant allele that is re ...
... sex chromosome, whereas following meiosis in males each sperm cell has either an X OR Y chromosome. 10B. Which gender M/F determines the sex of offspring in mammals? Male 11. Your friend Bill has a “sex-linked” disease. Which chromosome, X or Y, is more likely to contain the mutant allele that is re ...
notes on aggression
... most studies have focused on males and their aggression towards females, however studies have shown women can be as aggressive to their partner as males. CULTURAL DIFFERENCES in the importance of violence – among the Yanomamo of South America, male violence is required to attain status but among the ...
... most studies have focused on males and their aggression towards females, however studies have shown women can be as aggressive to their partner as males. CULTURAL DIFFERENCES in the importance of violence – among the Yanomamo of South America, male violence is required to attain status but among the ...
Unit 2
... A sex-linked trait is a trait controlled by genes on the X or Y chromosome. Recall, female is XX and male is XY Humans have 23 pairs of chromosomes. One set is the sex chromosomes, while the other 22 pairs are autosomes (non-sex chromosomes). If an allele is found on an autosome, it is called au ...
... A sex-linked trait is a trait controlled by genes on the X or Y chromosome. Recall, female is XX and male is XY Humans have 23 pairs of chromosomes. One set is the sex chromosomes, while the other 22 pairs are autosomes (non-sex chromosomes). If an allele is found on an autosome, it is called au ...
Lab packet
... Remember: The minimum value for rejecting the null hypothesis in the sciences is 0.05. This means that only 5% of the time would you expect to see similar data if the null hypothesis is correct OR you are 95% sure the data does not fit the expected ratio. If the calculated X2 value is greater than ...
... Remember: The minimum value for rejecting the null hypothesis in the sciences is 0.05. This means that only 5% of the time would you expect to see similar data if the null hypothesis is correct OR you are 95% sure the data does not fit the expected ratio. If the calculated X2 value is greater than ...
PDF
... June–July. In this species both males and females show size variation (Siva-Jothy, 1987). Females have no horns whatsoever whereas males possess a long stout head horn and a shorter prothoracic horn. There is a characteristically sigmoidal allometry between horn length and body size (SivaJothy, 1987 ...
... June–July. In this species both males and females show size variation (Siva-Jothy, 1987). Females have no horns whatsoever whereas males possess a long stout head horn and a shorter prothoracic horn. There is a characteristically sigmoidal allometry between horn length and body size (SivaJothy, 1987 ...
the snakeskin body trait in guppy: from x to y
... In this paper we report on a special case of crossing-over in Poecilia reticulata. It was known fact that Snakeskin body trait (Ssb) can be both X-linked, or Y-linked, and also that the percent of recombination between Y and X chromosomes is 0.36, while reciprocal recombination, from X to Y, is 0.00 ...
... In this paper we report on a special case of crossing-over in Poecilia reticulata. It was known fact that Snakeskin body trait (Ssb) can be both X-linked, or Y-linked, and also that the percent of recombination between Y and X chromosomes is 0.36, while reciprocal recombination, from X to Y, is 0.00 ...
pedigree charts - 7sciencewithmcmillan
... Answer: autosomal dominant Each affected individual has an affected parent; no skipping generations; normal siblings of affected individuals have all normal children; males and females are affected equally; about ½ the offspring of an affected individual are affected. ...
... Answer: autosomal dominant Each affected individual has an affected parent; no skipping generations; normal siblings of affected individuals have all normal children; males and females are affected equally; about ½ the offspring of an affected individual are affected. ...
Document
... – Women are more likely to be concerned about a mates earning potential: men are more likely to be concerned about a mate’s youth. – Men usually show greater jealousy at indications of sexual infidelity. ...
... – Women are more likely to be concerned about a mates earning potential: men are more likely to be concerned about a mate’s youth. – Men usually show greater jealousy at indications of sexual infidelity. ...
Biology 207 Workshop 8
... 3. a. If a child has an autosomal dominant trait, what can you say about the parents? One parent will be affected, the other can be unaffected. b. If two parents have an autosomal dominant trait, what can you say about their children? 3/4 of their children should be affected. c. If two parents have ...
... 3. a. If a child has an autosomal dominant trait, what can you say about the parents? One parent will be affected, the other can be unaffected. b. If two parents have an autosomal dominant trait, what can you say about their children? 3/4 of their children should be affected. c. If two parents have ...
Incomplete Dominance
... 4. List and Define the Vocab word at the bottom of the poster. 5. Must be COLORED and NEAT!! You may NOT copy my example! Think of something ORIGINAL!!! ...
... 4. List and Define the Vocab word at the bottom of the poster. 5. Must be COLORED and NEAT!! You may NOT copy my example! Think of something ORIGINAL!!! ...
Chromosomes and Inheritance
... The X chromosomes of the exceptional females are exact duplicates of mom (having inherited both X’s from her and the Y from dad) and these exceptional females can produce exceptional progeny when crossed to any male. The exceptional males inherit their X from their dad. This was compelling evidence ...
... The X chromosomes of the exceptional females are exact duplicates of mom (having inherited both X’s from her and the Y from dad) and these exceptional females can produce exceptional progeny when crossed to any male. The exceptional males inherit their X from their dad. This was compelling evidence ...
Pedigree Diagrams - manorlakesscience
... Males and Females can be affected All affected individuals have at least on affected parent Transmission from either mother or father to either son or daughter Once a trait leaves a branch it will not return In a large sample equal numbers of each sex affected ...
... Males and Females can be affected All affected individuals have at least on affected parent Transmission from either mother or father to either son or daughter Once a trait leaves a branch it will not return In a large sample equal numbers of each sex affected ...
Mendelian Genetics - Northeast High School
... What percentage of their offspring will NOT inherit the gene for hemophilia? __________ What percentage of the males will inherit the trait for hemophilia? _____________ What percentage of the females will be carriers?_____________ 13. Fill in the blanks with the following terms: Allele, recessive, ...
... What percentage of their offspring will NOT inherit the gene for hemophilia? __________ What percentage of the males will inherit the trait for hemophilia? _____________ What percentage of the females will be carriers?_____________ 13. Fill in the blanks with the following terms: Allele, recessive, ...
Sexual dimorphism
Sexual dimorphism is a phenotypic differentiation between males and females of the same species. This differentiation happens in organisms who reproduce through sexual reproduction, with the prototypical example being for differences in characteristics of reproductive organs. Other possible examples are for secondary sex characteristics, body size, physical strength and morphology, ornamentation, behavior and other bodily traits. Traits such as ornamentation and breeding behavior found in only one sex imply that sexual selection over an extended period of time leads to sexual dimorphism.