Multicellular, eukaryotic organisms that range in complexity from simple sponges to complex vertebrates belong to the kingdom
What will be an ideal response?
Anamalia
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Suppose the pair-rule genes were inactivated in Drosophila embryos. What is the likely result of the experiment?
A) The embryos would develop normally. B) The embryos would lack several segments. C) The embryos would have impaired anterior-posterior polarity. D) The embryos would have missing alternate segments.
In the mechanics of conjugation, exclusive of gene transfer, Hfr and F+ strains behave the same.
Answer the following statement true (T) or false (F)
One surprising finding in the Human Genome Project was that what percentage of the genome encodes a functional product?
A. 98% B. 50% C. 2% D. It varies based on the individual.
Which of the following statements about homologous genes is true?
(a) For protein-coding genes, homologous genes will show more similarity in their amino acid sequences than in their nucleotide sequences. (b) Fewer than 1% of human genes have homologs in the nematode and the fruit fly. (c) Most homologous genes arose by gene duplication. (d) A gene in humans that has homologs in plants and prokaryotes will show the same level of similarity in nucleotide sequence when the human and prokaryotic sequences are compared as when the human and chimpanzee sequences are compared.