Biology, 26.08.2021 20:40 isabellamason1499
Upon entering the thymus, thymocytes are classified as double with regard to coreceptors; before exiting as single-positive, naïve T cells, they pass through a period in which they are double . Question 7 options: positive; negative negative; positive Both "positive; negative" and "negative; positive" are correct. Neither "positive; negative" nor "negative; positive" are correct. Coreceptor expression state does not change in the thymus.
Answers: 2
Biology, 22.06.2019 12:30, Diaryyy3986
Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
Answers: 1
Biology, 22.06.2019 13:30, nstacie40
Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.
Answers: 2
Biology, 22.06.2019 22:00, preservations
Identify the fungus type pictured below. the image shows a mushroom used often in cooking, will gills underneath its cap.
Answers: 1
Upon entering the thymus, thymocytes are classified as double with regard to coreceptors; before ex...
Mathematics, 01.03.2021 18:50
Chemistry, 01.03.2021 18:50
Mathematics, 01.03.2021 18:50
Mathematics, 01.03.2021 18:50