A bivalent of meiosis I consist of

Two chromatids and one centromere

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Two chromatids and two centromeres

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Four chromatids and two centromeres

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Four chromatids and four centromeres

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Solution

The correct option is C Four chromatids and two centromeres
Bivalent is formed during zygotene. Each bivalent is made up of four chromatids, two of each chromosome. Centromere is the part of chromosome that attaches to the spindle during cell division. Each bivalent, thus, contains two centromeres.

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Question 6
A bivalent meiosis- I consists of
(a) two chromatids and one centromere
(b) two chromatids and two centromeres
(c) four chromatids and two centromeres
(d) four chromatids and four centromeres

Q. Four chromatids and two centromeres which are homologous, occurs in

Which of the following is correct about bivalent?

(i) Bivalents are tetrads.
(ii) A bivalent means 4 chromatids and 2 centromeres.
(iii) One bivalent consists of 2 homologous chromosomes.
(iv) Bivalents form in zygotene.

Q. Which of the following statements hold true for bivalents?
(i) Generally a bivalent is an association of four chromatids and two centromere.
(ii) It is a homologous chromosome.
(iii) Crossing over occurs between two different kinds of bivalents.

Q. A bivalent consists of ______ pair/pairs sister chromatid/chromatids and ______ pair/pairs of homologous chromosomes.

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A bivalent of meiosis I consist of

The correct option is C Four chromatids and two centromeresBivalent is formed during zygotene. Each bivalent is made up of four chromatids, two of each chromosome. Centromere is the part of chromosome that attaches to the spindle during cell division. Each bivalent, thus, contains two centromeres.

The correct option is C Four chromatids and two centromeres
Bivalent is formed during zygotene. Each bivalent is made up of four chromatids, two of each chromosome. Centromere is the part of chromosome that attaches to the spindle during cell division. Each bivalent, thus, contains two centromeres.