The male gametophytes of flowering plants are also referred to as _____.
Fill in the blank(s) with the appropriate word(s).
Ans: pollen grains
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The process of removing introns from mRNA and joining exons together occurs in a complex called the ____
a. ribosome b. anticodon c. lariat d. polysome e. spliceosome
In the motility test medium, the growth of bacteria is detected by the reduction of which dye which has a reddish color?
A. Neutral red B. Methyl red C. Tetrazolium salt (TTC) D. Phenol red E. Eosin Y dye
Sex-linked conditions are more common in men than in women because
A) men acquire two copies of the defective gene during fertilization. B) men need to inherit only one copy of the recessive allele for the condition to be fully expressed. C) the sex chromosomes are more active in men than in women. D) most genes associated with the sex-linked conditions are linked to the Y chromosome, which determines maleness.
An organism can fit into only one nutritional pattern, such as photoheterotrophy, and cannot change if the environmental conditions change.
Answer the following statement true (T) or false (F)