Deduce somatic chromosome number of each species used

Assignment Help Other Subject
Reference no: EM13266627

In the plant genus Triticum there are many different polyploid species, as well as diploid species. Crosses were made between three different species, and hybrids were obtained. The meiotic pairing was observed in each hybrid, and this is recorded in the following table. (A bivalent is two homologous chromosomes paired at meiosis, and a univalent is an unpaired chromosome at meiosis.)

Species crossed to make hybrid

Pairing in hybrid

1. T. turdigum  × T. monococcum

7 bivalents  + 7 univalents

2. T. aestivum  × T. monococcum

7 bivalents  + 14 univalents

3. T. aestivum  × T. turdigum

14 bivalents  + 7 univalents

Explain these results and, in doing so,

a) deduce the somatic chromosome number of each species used.

b) state which species are polyploid and whether they are autopolyploids or allopolyploids.

c) account for the chromosome pairing pattern in the three hybrids.

Reference no: EM13266627

Does the united states government do a good job

Beginning on page 4 of your text (Ferdico 11th) the balance between Due Process and Crime Control is discussed. Herbert Packer discussed these competing concepts (see table

What is the relationship between the brain and the mind

What is the relationship between the brain and the mind? How does the brain construct our understanding of the actions of other people? Is this different from the way in which

Strategy of seven steps to revitalising quality

Assess the effectiveness of the strategy of seven steps to 'Revitalising Quality' at BT Retail and evaluate the role and performance of management in its implementation.

Effectiveness more important to organizational performance

A college professor told her students, "The purpose of a management course is to teach students about management, not to teach them to be managers." Do you agree or disagree w

Explain how you will manage the logistical piece

Defend one of the quotes below from the article Something's wrong with both standardized tests and the 'Opt-Out' movement. Explain why you support or agree with the quote an

Five pillars of islam and their meaning

Muslims hold certain key principles in common. One of them is known as the Five Pillars of Islam, each of which plays some vital role in uniting Muslims.

What determines the method of saving files

Discuss the image file formats used for print, Web, and multimedia. What determines the method of saving files? Explain what resolution is traditionally used for print and wha

What are the psychological and physiological challenges

Healthcare professionals often work rotating shifts. In your own words, why is this problematic? What are the psychological, social, and physiological challenges related to


Write a Review

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd