Genetics Biology

Please if anyone could help me with a few suggestions about how to answer this question.

A mutation produces a change to produce the dominant gene for continued lactase production throughout adult life. This occurs very frequently and is present in almost 100% of people in northern Europe and populations orginating from northern Europe now living else where. In people originating in most parts of the world (as well as other mammals) the recessive gene for non-persistence of lactase is most common. The dominant gene is thought to be a fairly recent mutation, orginating perhaps 6000-10 000 years ago in people developing the skills of cattle herding and dairy farming.

Suggest how this gene may have increased in Northern European populations but not in other global areas? I would be grateful for some help really really stuck on how to answer this one.

This article may help you.

http://en.wikipedia.org/wiki/Lactose_intolerance#History_of_genetic_prevalence

Thank you

  1. 👍 0
  2. 👎 0
  3. 👁 163
asked by Katie

Respond to this Question

First Name

Your Response

Similar Questions

  1. Social Studies

    Many of you gave me really good suggestions, THANKS. But I have another question relating to my first question.Question= Did France become a country in the late 400's? Many sites have been telling me this so please help me decide

    asked by Sangeeta on June 15, 2010
  2. s.s.......... help me

    in the 1860's ( in ur opinion) would u have voted to impeached johnson? why or why not ? The key word in that question is YOU. If you answer the question, then we will be happy to proof-read or make suggestions regarding your

    asked by Annaiiz on February 6, 2007
  3. AD Analysis (URGENT)

    I have to do an ad analysis on alcohol and I've decided to use a GREY GOOSE vodka ad. Here's the question I'm having trouble with. Why do you think the person who created this ad has presented substance use in this way? I don't

    asked by John on October 18, 2009
  4. grade 9 GEOGRAPHY

    I am doing a project on the mixedwood plains. I have written this question before but I just want to know if I am on the right track. I need to to find suggestions on how the sensitive tourist can minimize their impact on the

    asked by peyton on November 30, 2010
  5. writing

    i just had a question. if i write down an essay a sort one can someone read it and tell me if its in the level that i want it to be in and/or give me some suggestions on how to improve it? Please answer because im applying for a

    asked by lily on March 28, 2012
  6. Religions of the World

    For my final project I have to conduct an interview with someone with a different religion other than my own and visit their place of worship. I have to pick a religion..Any Suggestions? and also.. I need to conduct an interview

    asked by Jen on June 19, 2009
  7. grade 9 GEOGRAPHY

    I posted a question earlier about the sensitive tourist I am a little confused on what the question is asking exactly. "Sensitve tourist" suggestions so that visitors can minimize their impact on the local environment and

    asked by peyton on November 29, 2010
  8. english

    hi everybody.I am going to be a teacher tomorrow and my topic is travelling.Anyway my question is:i would like to give at the end of the class a prise to the group who has done the best in class.But what to give?any

    asked by bill on November 17, 2008
  9. Social Responsibility

    Social Responsibility at School Explain the importance of social responsibility and independent action. I don't how to answer this question. I've searched on GOOGLE for 'social responsibility' but all the results are about

    asked by John on October 24, 2009
  10. algebra

    Need some one check my homework. Evaluate 3p/q when p=2 and q=6. Answer:1 Use < > or = for __ to write a true sentence: 0.001 __ 0.0010 Answer:< Question 3 Evaluate -3/8 - 5/8. Answer:7 Question 4 Evaluate: 84 + (-99) + 44 - (-18)

    asked by Lisa on May 29, 2014
  11. MATH

    I have 12 word problems to do for my class today. I am not very good at them. Any suggestions on how to set them up? they vary from question to question

    asked by jennifer on September 25, 2008

More Similar Questions