00:01
Hello, so according to the first one, fats that contains a higher proportion of unsaturated fatty acids to saturated fatty acids tends to be liquid at room temperature.
00:13
So this statement is absolutely correct.
00:16
Now move to the next one.
00:19
Cholesterol will increase the fluidity of membrane, rich in saturated fatty acids.
00:26
So this statement is also correct because unsaturated fatty acids have at least one double bond which increases the fluidity.
00:36
Now move to the next one.
00:39
Membrines that have a higher proportion of saturated to unsaturated fatty acids are more cold tolerant than membranes that have a higher proportion of unsaturated to saturated fatty acids.
00:52
It is false.
00:54
Because saturated fatty acids makes the membrane rigid or if there is unsaturated fatty acid it makes the membrane flexible means it increases the fluidity now move to the next one the melting temperature is inversely proportional to the gc content of double stranded dna this one is also false so melting temperature of dna depends on the fine balance between hydrogen bonds between bases.
01:52
So high dna concentration favors the duplex formation.
01:58
So we can say that melting temperature is directly proportional to the gc content of double stranded dna.
02:08
Now move to the fifth part.
02:12
Deoxy nucleotides like a hydroxyl group on the 2 prime carbon.
02:17
So this statement is absolutely true.
02:22
Move to the next one.
02:24
In the b form of doubles non -dited dna, the complementary base pairs lie nearly parallel to the excess of helix...