Even the replication of DNA and the expression of genes depend on the action of ____________________
Fill in the blank(s) with correct word
proteins
enzymes
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For a protein to be an integral membrane protein, it would have to be _____
A) hydrophilic B) hydrophobic C) amphipathic, with at least one hydrophobic region D) completely covered with phospholipids E) exposed on only one surface of the membrane
About 80% of all land plants, including grasses, shrubs, and trees, form mycorrhizae. Mycorrhizae are best described as
A. parasitic associations between fungi and plant leaves. B. balanced competitive associations between plants and fungi. C. mutualistic associations between fungi and plant roots. D. parasitic associations between fungi and plant roots. E. mutualistic associations between fungi and plant leaves.
Some dogs have erect ears; others have drooping
ears. Some dogs bark when following a scent; others are silent. Erect ears and barking are due to dominant alleles located on different chromosomes. If two dihybrids are crossed, a. the most common phenotype is drooping ears and barking. b. all droopy-eared, silent offspring are purebreeding. c. the least common phenotype is drooping ears and barking. d. there will be no phenotypes or genotypes that resemble the original parents. e. there will be no offspring that resemble the F1 generation.
Match the organelle with its function
A) protein storage B) lipid storage C) photosynthesis D) starch storage E) nucleic acid production F) flower color G) chloride storage H) protein production I) chromosome movement J) plastid precursor 1) proplastid 2) amyloplast 3) chloroplast 4) chromoplast 5) elaioplast