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it is the part on the homologous chromosome that holds the two together once they have crossed over. the point where two homologous non-sister chromatids exchange genetic material during chromosomal crossover during meiosis
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoCrossing over:is a process of (breakage) and (exchange) of parts between two homologous chromatids .Each bivalent (a pair of same chromosomes ) is called a tetrad . Along the length of each bivalent one or more X shaped connections between (non-sister chromatids ) are found ;these CHIASMATA are places where crossing overs have occurred .
I hope that's helped .
ZIZO-Saudi Arabia
Wiki User
∙ 13y agoProphase I
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How does chiasmata contribute to genetic variation?
Jh
Which structure is directly correlated with the production of genetic variability in the daughter cells produced during meiosis?
Chiasmata
Does chiasmata occur in mitosis?
no, it happens in meiosis, it is when the bivalent chromosomes cuts and rejoins so that there is variability in the chromosomes.
Is the attachment point of two sisters chromatids?
Chiasmata, coz they didnt say two chromatids (most probably)
Crossing over takes place chromosomes do what?
When there is crossing over, then non-sister chromatids of homologous chromosomes cross and twist at the chiasmata, where genetic materials are exchanged. At each if the chiasmata, the chromatids may break and rejoin with another sister chromatid and hence 'crossing over'. So basically, the 'ends' chromatids of the chromosome cross each other, then the chromatids are torn apart from each other.
What is the difference between Chiasma and Chiasmata?
Chiasmata is the plural of chiasma. They both describe the point of crossover between the maternal and paternal chromosomes.
Chiasmata form between.?
Sister chromatids
How does chiasmata contribute to genetic variation?
Jh
Crossing over points are called?
Chiasmata.
What term belongs with synapsis tetrads and chiasmata?
crossing over
During what event of meiosis will chiasmata be observed?
during the pachytene stage of prophase-1 of meiosis -1 of meiosis ,the X shaped structure chiasmata is observed
X shaped regions created when chromosomes crossover are called?
When chromosomes crossover the x shaped region created is called a chiasmata. These chiasmatas allow chromosomes to exchange of genetic materials.
X-shaped regions created when chromosomes crossover are called?
chiasmata
What holds doubled chromosomes?
Formation of chiasmata during crossing over
Which structure is directly correlated with the production of genetic variability in the daughter cells produced during meiosis?
Chiasmata
Does chiasmata occur in mitosis?
no, it happens in meiosis, it is when the bivalent chromosomes cuts and rejoins so that there is variability in the chromosomes.
Is the attachment point of two sisters chromatids?
Chiasmata, coz they didnt say two chromatids (most probably)
