Ask Question, Ask an Expert


Ask Biology Expert

describe Genetics

Mendel is the father of modern genetics however there are some genetic characteristics that cannot be describeed by simple Mendelian genetics. Such is the case by the human blood types in which there are three alleles for the same gene, A B and o. A parent is able to pass allele A, B or o to the offspring based on the parent's genotype.

From these three alleles there are 4 blood types (phenotypes)- A, B, AB, and O and there are six genotypes: AA, Ao, BB, Bo, AB, or oo. This is an instance of codominance in which both A and B alleles are codominant to each other.

Blood types is able to be used in forensics to determine if blood is from the victim or criminal. Blood types is able to be used to determine parental source in situation where the father is unknown, but blood types can only eliminate certain blood types. DNA fingerprinting is a better method which is used often in criminal and parental determination cases.







A                        o





Punnett squares such as the one shown above are used to determine the likelihoods (percentages) for genotypes of offspring given specific genotypes for the parents.

1. In the illustration above the Punnett Square represents a cross (mating) among a male (on the left side) with blood type AB and a female, (top of square), with blood type A, genotype Ao.

Answer the subsequent for the cross represented above.

1. describe what are the possible blood types for the offspring?

2. describe what are the ratios or percentages for each possible blood type from this cross?

3. describe what blood type is not possible from this cross?

1. Fill out two Punnett squares for a cross among a male with blood type B and a female with blood type AB. (Note that we don't know if the father is genotype BB or Bo from the information given. Therefore there are two solutions to the possible cross.) Set up two Punnett squares as well as answer the following problems about them.

1. What are the probable blood types for the cross between the type B (BB or Bo?) male and AB female?

2. What are the percentages (%) or possibilities for each blood type in the offspring?  What blood type(s) wouldn't be possible in a cross between these two parents?

Biology, Academics

  • Category:- Biology
  • Reference No.:- M919170

Have any Question? 

Related Questions in Biology

Lab an introduction to genetic processespart a dna

Lab: An Introduction to Genetic Processes Part A: DNA Replication and Protein Synthesis and Sources of Variability Exercise Exercise 1 . Illustrate your understanding of complimentary bases and DNA Replication by providi ...

Discussion 1 and 2discussion 1- explain the difference

Discussion 1 and 2 Discussion 1- Explain the difference between the first and second line of body defenses against infection by pathogens Discussion 2- Identify the function(s) of the lymphatic system. Identify one diffe ...

Which region of the retina gives the most accurate

Which region of the retina gives the most accurate interpretation of the image?

This sheet must only be turned in at the beginning of next

This sheet must only be turned in at the beginning of next lab. 1. Perform the conversions below: 12,581 mg = _______ kg   683; L = ______mL 5.8 m =________ mm;      6.3 s = _________ MS 2,250 mL = ______ L;      12 m = ...

Assignmentanatomy amp physiologydirections be sure to save

ASSIGNMENT Anatomy & Physiology Directions: Be sure to save an electronic copy of your answer before submitting it to Ashworth College for grading. Unless otherwise stated, answer in complete sentences, and be sure to us ...

Please answer the following questions you may answer on

Please answer the following questions, you may answer on this sheet or your own paper. 1. How does a theory differ from a hypothesis? 2. Mendel's laws are illustrated using Punnett squares. In the example below, we are l ...

Discuss the following1think about how how the cellular

Discuss the following: 1. Think about how how the cellular processes of respiration and photosynthesis are opposite reactions. Now consider that, respiration releases that energy for cellular use. Photosynthesis uses lig ...

1 identify list the two basic types of cells2 would you

1. Identify (list) the two basic types of cells. 2. Would you find proteins inside cells or cells inside proteins? (choose one answer) 3. What two things make osmosis a special type of diffusion? 4. What is a selectively ...

The scientific language of god assignmentthree parts if

The Scientific Language of God Assignment Three parts if this assignment to submit on Blackboard 1. Write a 3-4 sentence executive summary for each of the following three article links- (That means a paragraph on each of ...

Biology1is biology becoming more interesting to you as you

Biology 1. Is biology becoming more interesting to you as you learn about the workings of the cell and how cells interact in an organism? 2. What scientific information have you learned about cells surprises or horrifies ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate