Molecular genetics

Short free response question
1. Female bees are diploid, and male bees are haploid. The haploid males
produce sperm and can successfully mate with diploid females. Fertilized eggs develop into females and unfertilized eggs develop into males. Propose a mechanism for sperm production in male bees, and indicate how it would differ from sperm production in other animals with diploid males.
2. Somatic cells from a horse have 64 chromosomes and those from a donkey have 62 chromosomes. A cross between a female horse and a male donkey produces a mule, which is usually sterile. How many chromosomes do you expect are in the somatic cells of a mule? Propose an explanation for why most mules are sterile.

  1. 👍 0
  2. 👎 0
  3. 👁 40
asked by Benii
  1. We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

    1. 👍 0
    2. 👎 0
    posted by PsyDAG

Respond to this Question

First Name

Your Response

Similar Questions

  1. BIOLOGY

    In angiosperms, pollen grains are A. diploid and are made when haploid gametes join in fertilization B. diploid and are made when haploid gametophytes join in pollination C. Haploid and are made when haploid spores undergo mitosis

    asked by Cherry on March 5, 2014
  2. Biology

    A cell with replicated chromosomes. Pick haploid, diploid, or none. Explain why you chose the one you did. My answer:(I am not sure if this is complete enough?) I think it is a diploid, because diploids are copies of each

    asked by Tim on April 10, 2008
  3. Genetics

    Short answer question. 22. A yeast has n = 2. A gene for adenine synthesis can be functional (A), or defective (a). Another gene for guanine production can be functional (G), or defective (g). The two genes segregate (assort)

    asked by Kyle on January 14, 2020
  4. Biology

    A cell that is entering the M phase of the cell cycle is: A. always diploid, either with duplicated or unduplicated chromosomes B. always haploid, always with duplicated chromosomes C. either haploid or diploid, always with

    asked by Jon on December 2, 2010
  5. Bio

    In organisms that reproduce sexually, ________ are the sex cells that carry the genetic information from each parent. diploid gametes diploid morulas diploid zygotes haploid gametes diploid gametes

    asked by Anonymous on April 17, 2016
  6. Biology

    In most Hymenoptera, all fertilized eggs develop into diploid females and all unfertilized eggs into haploid males-a condition known as haplodiploidy. Workers in these colonies share half the alleles they received from their

    asked by Jason on May 7, 2009
  7. biology

    True or False: The multi-cellular stage in the life cycle of a fungus is haploid. http://staff.jccc.net/PDECELL/celldivision/lifecycles.html#fungi Yes, true. And to make it more interesting, there is a species of fungi that live

    asked by bio on March 8, 2007
  8. 7th grade science Ms. Sue please

    1. What steps in meiosis are similar to steps of mitosis? (1 point) meiosis I prophase meiosis I anaphase meiosis I metaphase all of the above 2. A cell that has two of every kind of chromosome is _____. (1 point) haploid diploid

    asked by Delilah on November 15, 2012
  9. science

    Which of the following is the best reason for the smaller number of drone bees compared to the number of worker bees in a beehive? a. the drones are always away from the hive pollinating flowers. B. because worker bees are smaller

    asked by me on April 13, 2017
  10. bio

    Is a cell containing replicated chromosomes haploid,diploid, or neither?Why?

    asked by Anonymous on January 12, 2011

More Similar Questions