Within a gymnosperm megasporangium, what is the correct sequence in which the following should appear during development, assuming that fertilization occurs? 

1. Sporophyte embryo 2. female gametophyte 

3. egg cell                 4. megaspore 

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#Question id: 1702

#XL - Q Biochemistry

αβ T-cells recognizing MHC plus processed peptide can:

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#Question id: 346

#XL - Q Biochemistry

The partial negative charge in a molecule of water occurs because ________.

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#Question id: 296

#XL - Q Biochemistry

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.

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#Question id: 9609

#XL - S Microbiology

Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?

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#Question id: 2681

#XL - T Zoology

Which of the following is not a character of unique Intergenic DNA?