Phylogenetic trees constructed from evidence from molecular systematics are based on similarities in ________.

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#Question id: 17281

#XL - R Botany

Identify each of the following structures as haploid or diploid: 

A) sporophyte 

B) spore 

C) gametophyte 

D) zygote 

E) Sperm

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#Question id: 34200

#XL - S Microbiology

A culture has a cell concentration of 1 × 10⁹ cells/mL and a biomass yield coefficient (Y_x/s) of 0.5 g biomass/g substrate. If 2 grams of substrate are consumed, calculate the biomass produced (in grams).

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#Question id: 15337

#XL - S Microbiology

HSCs express which type of cell-surface molecule, which is the receptor for stem cell factor (SCF). It is a cytokine that exists in both membrane-bound and soluble forms and the SCF-surface molecules interaction is critical for the development, in adult animals, of multipotential progenitor cells (MPPs).  Which type of surface molecules HSCs express?

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#Question id: 20230

#XL - P Chemistry

Molecular shaper of SF₄ , CF₄, XeF₄ are

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#Question id: 3642

#XL - S Microbiology

Any piece of DNA which replicates as a single unit is called