The process of mineral particles such as clay and salts accumulating in the B layer of soils is referred to as ________
Fill in the blank(s) with correct word
illuviation
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The portion of an enzyme that binds specifically to the substrate or substrates is referred to as the ____ of the enzyme
Fill in the blank with the appropriate word.
Answer the following statements true (T) or false (F)
1. Stem cells have determinate cleavage. 2. Very great differences in body form can result from only small differences of gene expression. 3. Radiata have neither an anterior end nor a posterior end. 4. All eumetazoans have cell junctions. 5. Gastrulation is brought about by an invagination of the wall of the blastocoel.
Which three classes of macromolecules are encoded by mtDNA?
A) transfer RNA, ribosomal RNA, and nuclear RNA B) photosystem I, photosystem II, and tRNA C) carbohydrates, enzymes, and proteins D) proteins, transfer RNAs, and ribosomal RNA E) lipids, carbohydrates, and nucleic acids
What do hemophilia, Duchenne muscular dystrophy, and red-green color blindness have in common?
A) They are more common in females than in males. B) They are caused by inheritance of an extra autosome. C) They are caused by inheritance of an extra sex chromosome. D) The gene that causes them is on the Y chromosome. E) They are X-linked.