An obsolete taxon, the ʺRadiata,ʺ included all phyla whose adults had true radial symmetry. Today, the ʺRadiataʺ is more correctly considered to be

1. a clade.

2. a grade.

3. monophyletic.

4. paraphyletic.

5. polyphyletic.

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#Question id: 3926

#SCPH28 | Zoology

Positive regulation of a gene requires __.

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#Question id: 751

#SCPH01 Biochemistry

The effect of alkali is to change the ___________________ of the DNA structure:

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#Question id: 4147

#SCPH28 | Zoology

Which one of the following antibiotics does not function by interfering with the translational process?

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#Question id: 4735

#SCPH12 I Genetics

In corn, three dominant alleles, called A, C, and R, must be present to produce colored seeds. Genotype A/–; C/– ; R/– is colored; all others are colorless. A colored plant AaCCRr is crossed with colorless plant aaCcRr. What proportional of offspring plant with colorless seed?

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#Question id: 4580

#SCPH06 I Botany

In modern terminology, diversity is understood to be a result of genetic variation. Sources of variation for evolution include all of the following except