________ cells provide support for plant organs where secondary growth has not yet occurred.
A. Sclerenchyma
B. Meristem
C. Parenchyma
D. Collenchyma
Answer: D
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Messenger RNA molecules that direct the synthesis of more than one polypeptide are said to be ________.
Fill in the blank(s) with the appropriate word(s).
What organelle and function pair best explains their ability to divide?
A. Chloroplasts and peroxisomes because they both have their own DNA. B. Mitochondria and chloroplasts due to their association with endosymbiosis theory. C. Ribosomes and mitochondria as each is a result of regression theory. D. Peroxisomes and lysosomes are both derived from engulfed bacteria.
Answer the following statements true (T) or false (F)
1. During truncation selection, the realized heritability of a trait depends on the selection differential, which is the difference between the average trait value of the selected parents and the average trait value of the entire parental population. 2. To test for statistical significance of the association of a SNP with a trait, the null hypothesis in a chi-square test for independence is that the one of the SNP alleles is more common in the Cases than in the Controls. 3. The fish population is in Hardy-Weinberg equilibrium before the asteroid hit.
Ribosomal subunits are referred to by number and letter combinations (e.g., 70S). The "S" refers to ________
Fill in the blank with correct word.