• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Lab of genetics.You will determine your phenotype and try to determine your genotype for the traits listed below.

Extracts from this document...

Introduction

Human Inheritance Objectives: * Determine your phenotype for several traits. * Determine (as far as possible) your genotype for the same traits. Procedures and Observations: You will determine your phenotype and try to determine your genotype for the traits listed below. Remember, if you have a dominant trait, you may be homozygous or heterozygous fro that trait. If you know that one of your parents has the recessive trait, you must be heterozygous. If neither of your parents have the recessive trait, put a blank (_) for the unknown gene. If you possess the recessive trait, record it as the genotype, with two recessive genes. * Free earlobes are dominant, L. people whose earlobes are attached directly to the side of the head have the recessive genotype, ll. Have your partner check your earlobes. 1. Record your phenotype and genotype in a table. (Remember that if you have the dominant trait, you may not be able to determine whether your genotype is homozygous or heterozygous, in that case, record L_ in the table. The blank means an unknown gene). * Inheritance of eye color is controlled by multiple genes, but people having the homozygous recessive genotype, bb, have blue eyes. ...read more.

Middle

Take a range or a fixed age of the people that is going to be asked. (16 year old). 13. Go person by person recording everyone's traits. RAW DATA: Individual Gender A B C D E F H I J K L 1 M L_ B_ ww R_ tt F_ hh N_ C_ ss pp 2 M L_ B_ ww R_ tt F_ hh N_ cc S_ pp 3 M ll B_ ww R_ tt ff hh N_ C_ S_ pp 4 M ll B_ W_ rr tt ff H_ N_ cc S_ pp 5 M L_ B_ ww R_ tt ff hh N_ C_ S_ pp 6 M L_ B_ W_ R_ tt F_ hh N_ cc ss pp 7 M L_ B_ W_ R_ tt F_ H_ N_ cc S_ pp 8 M L_ B_ ww R_ tt F_ hh N_ C_ S_ pp 9 M L_ B_ ww R_ tt F_ H_ N_ C_ ss pp 10 M L_ B_ ww R_ tt ff hh N_ C_ S_ pp 11 F L_ B_ ww R_ tt ff hh N_ cc S_ pp 12 F ll B_ W_ R_ tt ff H_ N_ C_ ss pp 13 F L_ B_ W_ rr tt ff hh N_ C_ S_ pp 14 F L_ B_ ww R_ ...read more.

Conclusion

This average male or female will have unattached earlobes, may have different shades of brown, hazel, or green eyes, a smooth hairline, will be able to roll tongue but wouldn't be capable of folding it, would have straight little fingers, wouldn't have hair on the middle joint of the fingers, would have any hair color except red, will have curly hair, long eyelashes and five fingers. Errors and improvements Errors Improvements It was difficult to determine whether the eyelashes were long or short because there wasn't a fixed measurement. Establish a measurement that differentiates long eyelashes form short eyelashes. The table was difficult to complete because I needed to check with the information given, which alleles qualify for each characteristic. Design an easier table to recollect data. Only a small quantity of individuals was used and all of them from the same geographical region. Use a grater quantity of individuals from distinct geographical regions, for more reliable data. The makeup, hair treatments and fake eyelashes interfered with the identification of a special trait. Ask if previous make up or fake eyelashes were used to obtain the real and natural results. In general the identification of the traits was very difficult because we didn't have a reference. Show clear images of how the traits were present in different individuals, so that we could have a reference of how they looked. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. Marked by a teacher

    Neurology and Behaviour. Focus question: Is there an increase in the perception and ...

    5 star(s)

    have meant to give an image a score of five however felt that this rating may be considered too high and as a results rerated it. The results were entirely based on the individuals rating of the images and as such vary in uncertainty and reliability.

  2. In this extended essay I am looking at the effect of different kind of ...

    which means that there will definitely be an increase in both air pollution and noise pollution which will decrease the amount of nutrients that are very necessary for the plant leading to put the trees to an extinct. Increase in the amount of toxic substances in atmosphere like nitrous acid/ sulphuric acid, damages the plant in many ways.

  1. Vitamin C Lab

    From the burette, slowly release the DCPIP drop by drop into the conical flask with lemon juice in it, simultaneously gently swivel the conical flask around to ensure that the lemon juice and DCPIP is mixed 13. Stop releasing DCPIP immediately after the colour of the lemon juice decolourises into a faint pink 14.

  2. Molecular Genetics: differentiating between various molecular databases

    All the sequences were obtained from www.uniprot.org * The program used to compare the four amino acids is also a control variable. The variables were compared on the website: http://fasta.bioch.virginia.edu/fasta_www2/fasta_list2.shtml * Another control variable of the experiment would be the number of species used for the experiment.

  1. The effect of pvc piping on the breathing/heart rates of male year 12 students

    Piping used Controlled variable Non toxic 0.8cm pvc tubing. Method of recording pulse Controlled variable Pulse will be recorded via a heart rate monitor for 1 minute with the beats per minute recorded. Start of heart rate monitor Controlled variable Heart rate is only read after 30 seconds of pipe

  2. How does the distribution of Plantago maior differ?

    15 8, on asphalt, Plantago Major are small, damaged 1 6 11 2 2 7 3 3 10 4 2 10 5 1 23 6 2 6 7 5 5 8 4 5 9 1 7 10 3 13 11 1 17 12 1 6 13 1 4 14 2

  1. Drosophila Lab: Eye Color

    Practice immobilizing and sexing these flies. Examine these flies and note the characteristics of their eyes, wings, bristles, and antennae. 2. To make handling easier, immobilize the flies with an ether, or by twirling the vial in ice for several minutes. Place the immobilized flies on a piece of filter paper inside a Petri dish.

  2. Biology Extended Essay 2009

    130-210 S 4.6 Folic acid (ug/100 mL) 1.2-2.3 Na 1.7 Vitamin C and its role Vitamin C is one of the most important nutritional benefits of orange juice. One 100 mL glass of orange juice is already exceeded the recommended daily intake (RDI) of 40 mg.4 Vitamin C helps the absorption of iron; it assists to prevent anemia (iron deficiency).

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work