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GENETICS: True or false? If false explain why these statements are false. Will g

ID: 132581 • Letter: G

Question

GENETICS:

True or false? If false explain why these statements are false. Will give a thumbs up if correct.

5 A true breeding double dominant strain of corn (AABB) is crossed to a true breeding double recessive strain (aabb). The F1 plants (AaBb) are then test crossed. If the A/a locus is linked to the B/b locus then we should expect more Ab and aB gametes compared to AB and ab gametes in the Fl plants. In meiosis, homologous chromosomes pair and separate in anaphasel; sister chromatids separate in anaphasell Reductional division refers to the separation of sister chromatids in mitotic anaphase

Explanation / Answer

5. There will be more AB and ab gametes are possible because A and B are on same chromosome and are linked and a and b and less chances to segregate. Hence statement is false.

6. False. Homologous chromsones are paired in prophase zygotene and separated in anaphase 1. Sister chromatids are separated in anaphase 2.

7. Reductional divison is meiosis 1 and homologous chromosomes separated in meiosis 1 anaphase. StatementSis false.