What’s the total mass of 100 thallium atoms?

What is the electronic configuration for Ni? a)1s22s22p63s23p64p84s2 b)1s22s22p63s23p63p104s2 c) 1s22s22p63s23p64s23d8 d)) 1s22s22p63s23p64s24p8 e)) 1s22s22p63s23p64s43p5

How many significant figures does 0.000458 have?

Which of the following statements is true of ?

An F2from a cross thought to control by two genes in an epistatic fashion and segregated in a ratio of 158:29:7. Conduct a Chi Square test showing all work and determine if these observed values fit the expected ratio. Describe the type of gene action involved and write possible genotypes of each phenotypic class. (Ch-square is 5.991 at 2 df at 5% level). 

Wheat is a naturally developed allopolyploid and consists of three genomes? What are those three genomes and what are those ancestors of those three genomes? Layout how hexaploid wheat was developed in the nature. 

An F2 population was developed to understand the inheritance of auricle color in barley. The initial understanding was that two genes are controlling the auricle color. The observed F2 ratio was 120: 88 for purple to white auricle color. Conduct a Chi Square test to determine if these observed values fit the expected (Ch-square is 3.84 at 1 df at 5% level). 

Reproduce this chart on your answer sheet and fill in the      Mode of Reproduction Type of Variety Heterozygosity in plants (low/high) Heterogeneity in population (low/high) Vegetative Self-pollination Cross pollination with inbreeding    

Write contribution/contributions of these scientists in plant breeding.    Norman E. Borlaug: Gibesa Ejeta: E.M. East: T. T. Chang

You want to transfer a disease resistant gene from Italian Rye grass to Tall Fescue. Italian Rye grass is diploid and tall Fescue is hexaploid and they are not sexually compatible. Explain what breeding technique you will follow to transfer that gene from Italian Rye grass to Tall Fescue.