A pair of homologous chromosomes refers to as: Question 2 options: synapsis sister chromatid crossing over tetrad

A pair of homologous chromosomes refers to as a tetrad.

Here's a step-by-step explanation:

1. Homologous chromosomes are a pair of chromosomes, one from each parent, that have the same length, overall appearance, and genes, although the specific alleles may differ.

2. During the first division of meiosis, these homologous chromosomes pair up in a process called synapsis.

3. When these homologous chromosomes pair up, they form a structure called a tetrad, which consists of four chromatids.

4. Within the tetrad, segments of DNA may be exchanged in a process called crossing over, which leads to genetic recombination.

5. However, the term that specifically refers to a pair of homologous chromosomes is "tetrad".

So, the correct answer to your question is "tetrad".