Triticale (2n = 56) is an amphidiploid between wheat (2n = 42) and rye (2n = 14). In a breeding
experiment, you cross Triticale and rye and then, in the F1 progeny, you examine the pairing of
chromosomes during meiosis I. What do you see? (note: a bivalent is two homologous
chromosomes paired during meiosis I and a univalent is a single unpaired chromosome)
(CHOOSE ONE)
A) 7 bivalents and 21 univalents
B) 14 bivalents and 42 univalents
C) 35 bivalents
D) 35 univalents
E) none of the above.
Triticale (2n - 56) is an amphidiploid between wheat (2n - 42) and rye.pdf
1. Triticale (2n = 56) is an amphidiploid between wheat (2n = 42) and rye (2n = 14). In a breeding
experiment, you cross Triticale and rye and then, in the F1 progeny, you examine the pairing of
chromosomes during meiosis I. What do you see? (note: a bivalent is two homologous
chromosomes paired during meiosis I and a univalent is a single unpaired chromosome)
(CHOOSE ONE)
A) 7 bivalents and 21 univalents
B) 14 bivalents and 42 univalents
C) 35 bivalents
D) 35 univalents
E) none of the above
