Sex ratio at birth is called the ________ sex ratio.

A) primary

B) secondary

C) tertiary

D) quaternary


B) secondary

Biology & Microbiology

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Which type of plant hormone has been shown to both promote pollen tube elongation and inhibit root

elongation?

a. jasmonates b. ethylene c. brassinosteroids d. salicylic acid e. oligosaccharins

Biology & Microbiology

If cell division is no longer possible, eukaryotes can arrest the cell cycle. During which stage is this decision made?

A. telophase B. G1 C. G2 D. S phase E. prophase

Biology & Microbiology

In which of the following structures does translation occur?

A. Vesicles B. Golgi apparatus C. Endoplasmic reticulum D. Ribosomes

Biology & Microbiology

Chromosomes that are NOT primarily involved in determining sex are known as

a. autosomes b. homologous c. sex chromosomes d. linked

Biology & Microbiology