Big ! long stems (t) are dominant over short stems (t) for pea plants. determine the phenotypic and genotypic ratios of the offspring from the (hint: draw punnett squares, phenotypic ratios should be in the format similar to 1 long : 1 short and genotypic ratios should be in the form similar to 1 tt : 1 tt : 1 tt) be sure to reduce the ratios to lowest terms (for example, 2 : 2 reduces to 1: 1):

a) cross-pollination of a heterozygous long-stem plant with a short stem plant.

phenotypic ratio:

genotypic ratio:

b) self-fertilization of a heterozygous plant

phenotypic ratio:

genotypic ratio:

4. cystic fibrosis is regulated by a recessive allele, c. explain (do not just fill in the punnet square below) how two normal parents can produce a child with this disorder. be sure to include the genotype of a child with cystic fibrosis. (hint: give the genotypes of the normal parents and show that a cross is possible to result in a cystic fibrosis offspring).

A) Cross:   Tt    ×    tt
Offspring: Tt, Tt, tt, tt

1) Phenotypic ratio: Long: Stem = 2:2 = 1:1

2) Genotypic ratio: TT : Tt : tt = 0 : 2 : 2

b) Cross: Tt     ×    Tt
Offspring:  TT, Tt, Tt, tt

1) Phenotypic ratio: Long: stem = 3 : 1

2) Genotypic ratio: TT : Tt : tt = 1 : 2 : 1

4) Cystic fibrosis is regulated by a recessive allele, it means, it would be "Active" when both the allele will be same in the Offspring. So, let father transmits "Y" chromosome to his son, and mother "X" if they both were carrier of this disease, then they will inherit it to their offspring.

Genotype: XcXc or XcY

Hope this helps!

Schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  notbe written on computer in this day and age.many schools now have a 1-to-1 computer policy, and many districts and states in the united states have mandated computers or ipads across the state for every student,  including los angeles, the second largest school district in the country.but the thing is, when they tried it in la, it wasn't the success they hoped for. that's because the tablets weren't used as much as they expected. rather, it appeared there was a gap between the digital native's love of technology and their use of it in the classroom.this conflicted relationship with computers is also underscored by much of the literature on education. it is also highlighted in professional development and conferences such as  edutech.

D.) domain, kingdom, phylum, class, order, family, genus, species