Search & Filtering
Mendel found that full pods are dominant over constricted pods while round seeds are
dominant over wrinkled seeds. One of this crosses was between full, round plants and
restricted, wrinkled plants. From this cross, he obtained an F1 generation that was all full and
round. In the F2 generation, Mendel obtained his classical 9:3:3:1 ratio. Using this
information, determine the expected F1 and F2 generation result of a cross between
homozygote restricted, round plants and full, wrinkled plants.
In another cross involving parent plants of unknown genotype and phenotype, the following
offspring were obtained:
F1 3/8 full, round: 3/8 full, wrinkled; 1/8 constricted, round; 1/8 constricted, wrinkled.
Determine the genotype and the phenotype of the parents
- Explain the process of protein synthesis (include types of RNA used and the location of each process)
how will you identify the domain of an unknown protein sequence? with an appropriate example, describe in detail the bioinformatics tool, web server, database, and procedure (step by step) that you would use.
Give a difference between the members of each pair of organism
Algae and fungus
Bacteria and protozoa
Fish and reptile
Mosss and fern
what Is Folic Cell and what purpose Did it function INOur body
If you want to study a particular protein named ‘Keratin’. How will you retrieve its nucleic acid sequence, protein sequence, carbohydrate binding site (in present), protein chains, and amino acid frequency? With an appropriate example, describe in detail the bioinformatics tool, web server, database, and procedure (step by step) that you would use.
Test the hypothesis: You cross the dwarf and tall plants and then self-cross the offspring. For best results, this is repeated with hundreds or even thousands of pea plants. What special precautions should be taken in the crosses and in growing the plants?
Analyze your data: You observe the following plant phenotypes in the F2 generation: 2706 tall/inflated, 930 tall/constricted, 888 dwarf/inflated, and 300 dwarf/constricted. Reduce these findings to a ratio and determine if they are consistent with Mendelian laws.
Form a conclusion: Were the results close to the expected 9:3:3:1 phenotypic ratio? Do the results support the prediction? What might be observed if far fewer plants were used, given that alleles segregate randomly into gametes? Try to imagine growing that many pea plants, and consider the potential for experimental error. For instance, what would happen if it was extremely windy one day?
1) A farmer breeds a chicken with all white plumage with a chicken with all black plumage. All of the F1 offspring have bluish-gray plumage. When two of the bluish gray birds are crossed, black, white and bluish-gray offspring are produced. What is the mechanism of inheritance and the genotypes of the parents, F1’s and F2’s?
In the fly Drosophila, the allele for dumpy wings (d) is recessive to the normal longwing allele, (D) and the allele for white eye (w) is recessive to the normal red-eye allele (W). In a cross of DDWW with Ddww, what proportion of the offspring are expected to be “normal” (long wings and red eyes)? What proportion are expected to have dumpy wings and white eyes?
1) Phenylketonuria (PKU) is a human autosomal genetic disorder in which the affected individual cannot metabolize the amino acid phenylalanine. The disease is characterized by severe mental retardation if left untreated. The disease is caused by homozygosity for a recessive, mutant allele. If two parents are heterozygous for the allele, what is the probability that their child will have PKU?
