These structures are held together by cohesin:  

A.  Nucleosomes
B.  Sister chromatids
C.  Homologous chromosomes
D.  Solenoids


B.  Sister chromatids

Biology & Microbiology

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Which of these is a tRNA? The figure shows a process of translation. Each letter marks a definite structure.

A marks the thread, to which the ribosome is attached. This thread is the base of the translation. B marks the structure, which is bonded with Gly and is located inside the ribosome. C marks the structure, in which the translation happens. D marks the thread, which is formed by the translation. Letter E marks the structures, which are constituent elements of the forming thread.

Biology & Microbiology

Amniocentesis poses increased risks to the fetus and mother

a. True b. False

Biology & Microbiology

To summarize the conclusions of modern human behavioral genetics research, behavior is influenced by

_____________________, _____________________, and _____________________ factors. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Recombinases mediate transcript processing from pre-mRNA to mature mRNA

Indicate whether the statement is true or false

Biology & Microbiology