Answer:
This statement is true
Explanation:
The genetic code is required for the production of proteins with exception of some few mitochondrial proteins. The transfer RNA (tRNA) acts as an adaptor that enables to associate a messenger RNA trinucleotide sequence (known as anticodon) with its corresponding amino acid in the polypeptididic chain. The genetic code is considered to be a biochemical system capable of revealing the information contained in the DNA in order to synthetize a protein, which has been encrypted in the form of three nucleotides (i.e., codons).
A cow's eye contains a structure called, "lumen" which allows them to see in the dark.
Answer:
tumor suppressor gene
Explanation:
A tumor suppressor gene is capable of modulating cellular processes during cell division and/or replication, thereby avoiding uncontrolled cell proliferation and tumor development. For example, the p53 gene is a tumor suppressor gene that encodes a protein (p53) which is well known to regulate critical cellular processes such as, for example, cell cycle arrest and programmed cell death (apoptosis). Moreover, breast cancer genes BRCA1 and BRCA2 are tumor suppressor genes that regulate the repair of damaged DNA through the Homologous recombination (HR) pathway. In consequence, mutations in BRCA1 and BRCA2 genes can increase the risk of developing breast cancer.
Answer:
The correct answer is option A) "The plasmid would not contain the human gene because the cuts are not compatible".
Explanation:
One of the basis of genetic engineering is to use the proper restriction enzymes to cut fragments of DNA. After cutting DNA with restriction enzymes most of the time the fragments have sticky ends, which are a few nucleotides that are one stranded and complementary to each other. Scientists take advantage of this characteristic and use the same restriction enzyme to cut genes and plasmid and later put it together with DNA ligases. If genes and plasmids are accidentally cut with different restriction enzyme it is very likely that the plasmid would not contain the human gene because the cuts are not compatible, since no sticky ends are generated.
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