#Question id: 2082
#Section 3: Genetics, Cellular and Molecular Biology
Which of the cellular organelles are enclosed by two cellular membranes?
#Question id: 11798
#Section 6: Plant, Animal and Microbial Biotechnology
Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;
#Question id: 1879
#Section 2: General Biology
The β chain of the FcϵRI:
#Question id: 20602
#Section 5: Bioprocess Engineering and Process Biotechnology
#Question id: 4143
#Section 3: Genetics, Cellular and Molecular Biology
It is possible to convert the Cys that is a part of Cys-tRNACys to Ala by a catalytic reduction. If the resulting Ala-tRNACys were added to a mixture of (1) ribosomes, (2) all the other tRNAs and amino acids, (3) all of the cofactors and enzymes needed to make protein in vitro, and (4) mRNA for hemoglobin, where in the newly synthesized hemoglobin would the Ala from Ala-tRNACys be incorporated?