If you were born before January 2, 1950, or were blind at the end of 2014, check the appropriate box(es) on line 39a. If you were married and checked the box on Form 1040, line 6b, and your spouse was born before January 2, 1950, or was blind at the end of 2014, also check the appropriate box(es) for your spouse.Be sure to enter the total number of boxes checked.xample.(p37)Your spouse was born on February 14, 1949, and died on February 13, 2014. Your spouse is considered age 65 at the time of death. Check the appropriate box for your spouse on line 39a. However, if your spouse died on February 12, 2014, your spouse is not considered age 65.
Best Answer: The biggest disadvantage is that the mapping is carried out on a few individual's genome, and is not representative of all humans.It doesn't answer questions about where the coding of a gene starts and ends, nor does it answer questions about regulation of that gene.est Answer: The biggest disadvantage is that the mapping is carried out on a few individual's genome, and is not representative of all humans.
Disadvantages of Purposive Sampling. Researcher bias. The main disadvantage of purposive sampling is the high probability of researcher bias, as each sample is based entirely on the judgment of the researcher in question, who generally is trying to prove a specific point.his being the case, purposive sampling is useful to a researcher because they can use the variety of methods available to build and increase their research data. For example, you could start with critical case sampling, and then using the information gathered, progress to expert sampling in stage two.