IB Biology HL D2.1.11 Meiosis Generates Variation Topic Practice

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Study D2.1.11—Meiosis generates variation conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

Question 1

[Maximum number: 2]

Hemophilia is a sex-linked disease that affected some members of royal families in Europe during the 19th and 20th centuries.

Figure for Question 1 — IB Biology HL

Question (a)

(a)

The diagram shows the structure of two chromosomes after the first division of meiosis, assuming that there was no crossing over or chiasmata formation.

Figure for Question (a) — IB Biology HL
[ 2 ]

Question (i)

(i)

Draw the same chromosomes to show their structure at the same stage of meiosis if there had been one chiasma between two gene loci.

[ 1 ]

Question (ii)

(ii)

State the stage of meiosis where chiasmata formation may occur.

[ 1 ]
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