Answer the following questions true (T) or false (F)
1. Dendritic cells are the histamine-producing cells of the immune system.
2. Stomach acid is one of our natural defenses against bacteria in food.
3. Cytokines are molecules that cut holes in bacterial membranes.
1. FALSE
2. TRUE
3. FALSE
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What is the chromosome number of
endosperm?
a. haploid b. diploid c. triploid d. quatraploid e. it depends on which plant it is in
The basic building blocks of DNA are ____
a. proteins b. fats c. amino acids d. nucleotides e. phosphates and sugars
DNA Pol III catalyzes the addition of successive nucleotides to the 5' end of a growing polynucleotide chain
__________________ Indicate whether the statement is true or false.
What is the genotype of a dominant individual if, when selfed, some of its offspring show the recessive phenotype?
A) Either DD or Dd B) dd C) DD D) Dd