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otez555 [7]
3 years ago
15

A boy drops an ice cream cone on a cement sidewalk on a hot, sunny day. The ice cream begins to melt soon after hitting the side

walk. What causes the ice cream to melt?
Biology
1 answer:
liq [111]3 years ago
3 0
The heat from the sun. It causes the ice cream to gain heat and melt.

Hope this helps :))
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<u>Sister chromatids are identical  forms of chromatids  of a chromosomes. They are mostly  formed by semi-conservative replication of DNA molecule of a single  chromosome.Thus they  are  like  </u><u>'photocopies' </u><u> of  original parent  chromosomes; joined together at the Centromere</u>.

They are exactly similar in all ramification; with the same gene and allele compositions..

<u>However; slight differences  arise between the two identical sisters due to  </u><u>mutation</u><u> from</u><u> errors </u><u>at replication;and also in  the  length of telomere repeats.</u>

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<u>However, they are genetically  similar in composition; if they  are contained in homologous chromosomes</u>. This is because Synapsis of bivalent of these chromosomes allow genetic material to be shared by  chromosomal crossing-over between the non-sister chromatids  on the chromosomes ; therefore identical genetic characteristics are shared .

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