Description of this paper

Observing Human Phenotypes

Description

solution


Question

Sep 15, 2014 at 4:02pm;Please help me complete this assignment.;Attachment Preview;Observing_Human_Phenotypes.docx Download Attachment;BIOS140 Observing Human Phenotypes Worksheet;Name: [Insert Your Name Here];The total worksheet is worth 30 points.;Objective;We will learn to observe inherited phenotypes and predict outcomes based on specific pedigree;charts.;Part I;Given below are some of the inherited traits. Based on the phenotype, predict the genotype.;You may have to consider more than one possibilities of a genotype for some of the traits. (2;points each);Notes to Students: If you are doing the lab in the class room, calculate the ratio in the class;room. Online students should ignore the question.;Bent little finger: A bent little finger is dominant over a straight finger. If you hold the two little;fingers next to each other with your palms facing you, the last segment of the bent little fingers;will move away from each other and towards the ring finger.;B= Bent little finger, b= straight finger;Your genotype=;Ratio in the class room=;Widows Peak: The presence of widows peak is dominant over straight hair line. A widow's;peak is a distinct pointed peak in the hairline in the center of the forehead. Straight hair line;makes almost a horizontal straight line across the forehead.;P= Widows peak, p= Straight Hair;Your genotype=;Ratio in the class room=;Dimples: Dimples on the cheeks is dominant over no dimples.;D= dimples, d= No dimples;1Observing Human Phenotypes;Your genotype=;Ratio in the class room=;Freckles: Presence of freckles is dominant over no or very few freckles.;F= Freckles, f= No freckles;Your genotype=;Ratio in the class room=;Ear lobes: Free ear lobe is dominant over attached ear lobe.;E= Free ear lobe, e= attached ear lobe;Your genotype=;Ratio in the class room=;Tongue rolling: The ability to roll tongue into a U-shape is dominant over the lack of this ability.;R= Tongue rolling, r=non-tongue roller;Your genotype=;Ratio in the class room=;Hair color: Non-red hair is dominant over red hair.;H= non-red hair color, h= red hair;Your genotype=;Ratio in the class room=;Middigital hair: Middigit is the middle segment of a finger. Hairy middigits are dominant over;hairless middigits.;M= hairy middigits, m= Hairless middigits;Your genotype=;Ratio in the class room=;Part II;2Observing Human Phenotypes;Scenario 1: Given below is a pedigree chart of a family showing inheritance of straight eyes;(shaded) or crooked eyes (open). Squares indicate a male and circles indicate a female.;Based on the chart below, fill the blanks below and determine the genotype of all members of;the family. (5 points);Assumption;A =;(straight or crooked);a =;(straight or crooked);What type of eyes would each genotype have (straight or crooked)?;AA =;Aa =;aa =;Pedigree Chart;Genotype of Grand children: (Show for both alleles) (1 point);Is straight eyes inherited as a dominant or recessive trait? (1 point);Scenario 2: Given below is a pedigree chart of a family showing inheritance of Large ears;(shaded) or small ears (open). Squares indicate a male and circles indicate a female. Based;3Observing Human Phenotypes;on the chart below, answer the questions below and determine the genotype of all members of;the family. (5 points);Assumption;A =;(large or small);a =;(large or small);What type of ears would each genotype have (large or small)?;AA =;Aa =;aa =;Genotype of Grand children: (Show for both alleles) (1 point);Are large ears inherited as a dominant or recessive trait? (1 point);4Observing Human Phenotypes

 

Paper#15306 | Written in 18-Jul-2015

Price : $42
SiteLock