[mÌ¥ÉÌÅ]) are an ethnic group from the mountainous regions of China, Vietnam, Laos, and Thailand. Hmong are also one of the sub-groups of the Miao ethnicity (èæ) in southern China. Hmong groups began a gradual southward migration in the 18th century due to political unrest and to find more arable land.
In this way a DNA molecule is similar in structure to a ladder in which the sugar and phosphate groups make the uprights and the nitrogen base groups the rungs. There are four types of nitrogen bases or base groups. 1  Adenine (A). 2  Thyamine (T).3  Cytosine (C). 4  Guanine (G).he nucleotides in the DNA molecule are linked in series from one phosphate, to the next sugar, to the next phosphate and so on. The DNA molecule can be considered as a ladder with the phosphate and the sugar molecules making up the uprights and the bases making up the rungs.
Rating Newest Oldest. Best Answer: A: The DNA molecule looks like a twisted ladder, or spiral staircase. It is often referred to as a âdouble helix.â A helix is a shape that twists like the threads of a screw.The sides of the double helix are made up of the deoxyribose sugar and phosphate groups.Each rung or step on the DNA ladder is made up of a pair of nitrogenous bases. Look closely at the diagram. Notice that the bases on one side of the ladder match up in a specific way with the bases on the other side.ating Newest Oldest. Best Answer: A: The DNA molecule looks like a twisted ladder, or spiral staircase. It is often referred to as a âdouble helix.â A helix is a shape that twists like the threads of a screw.