Of the following structures, which are a specialized cell of the epidermis? Select all that apply.A) Guard cellsB) SclereidsC) Root hairsD) Oil glandsE) Trichomes
What will be an ideal response?
A, C, D, E
Sclereids are part of the ground tissues of plants. Ground tissue cells function in storage, photosynthesis, and secretion. Sclereids are a type of sclerenchyma cell that may have an irregular shape. Their function is to strengthen the tissues where they are found. Please read Section 29.2 for more information on sclereids.
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In your Drosophila laboratory, you find a larva that is missing segments Lb, T1, T2, and T3. This larva probably has a mutation in a ___________ gene.
A. pair-rule B. gap C. maternal effect D. segment-polarity E. gap or segment-polarity
CDKs are protein kinases. They function to ____
a. add phosphate groups to target proteins b. check for the attachment of spindle fibers to chromosomes c. remove phosphate groups from cyclins d. arrest the cell cycle e. allow the cell cycle to work forward or backward
New genes can evolve from all of the following except
a. gene duplication from unequal crossing over. b. gene duplication from replicating transposable elements. c. gene duplication from crossing over. d. exon shuffling. e. combining parts of two or more genes.
Proteins are processed and packaged in the organelle known as the ________
Fill in the blank(s) with correct word