The organizational phases of development are regulated by
A. morphogens and transcription factors only.
B. segmentation genes.
C. morphogens.
D. transcription factors.
E. morphogens, transcription factors, and segmentation genes.
Answer: E
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Hamilton explained the origin of altruism in selected insect societies with his kin selection model of sex determination. Since males are haploid and females are diploid, the workers share a very high proportion of alleles, theoretically as high as 75%. What is this called?
A. diploidy B. haploidy C. haplodiploidy D. parthenogenesis E. altruism
Transcription of inverted repeats produces an mRNA with complementary segments that fold to form what type of secondary structure?
What will be an ideal response?
A gene can now be defined as:
a. a DNA sequence that carries information to produce a specific RNA or protein product. b. a DNA nucleotide sequence that carries information to produce a specific polypeptide. c. a DNA or RNA sequence that carries information to produce a single polypeptide. d. a DNA nucleotide sequence that carries information to produce an enzyme. e. a DNA or RNA sequence that carries information to produce a specific polypeptide.
The best way to defend the body from a viral infection is to prevent the infection by using a vaccine
Indicate whether the statement is true or false