Answer:
The correct option is b
Explanation:
Phospholipids are lipids that contains a phosphate group, which forms the "head" of the molecule and is hydrophilic (water loving). The "tail" of phospholipids is made of two fatty acids which are hydrophobic (water fearing). The phospholipid in the cell membrane acts as a selectively permeable barrier that regulates what goes in and out of the cell <u>thereby protecting the cell from some external molecules and ions</u>.
Answer:
Nucleotide bases.
Explanation:
Unique sequences of bases makes up a nucleotide. These nucleotide sequencing are used by DNA as a genetic code of information that determines type of cells, proteins and the whole organismal structure.
There are four nucleotide bases, Adenine and guanine termed purines are big, cytosine and thymine called pyrimidines are small. A purine pairs with a pyrimidine, such that adenine pairs with thymine and guanine pairs with cytosine. The bases are the same but each DNA uniqueness lies in the sequence of base pairing.
Answer:
The DNA of any individual possesses genetic traits which vary from individual to individual. Traits can be physical traits or behavioral traits.
Explanation:
Example of a physical trait would be the appearance of an individual and behavioral trait refers to the nature of the individual. Both vary from individual to individual.
Answer:
蛋白质合成的场所只能是核糖体 在核糖体上合成的蛋白质会被转送到内质网进行进一步的加工 包括折叠、组装和糖基化等一系列的过程。最终再经过高尔基体的加工和包装 进行分泌
在内质网上的操作仅仅是加工而已 使蛋白质产生三级四级结构，但是合成的过程（脱水缩合）一定是在核糖体上的。
Explanation:
The main reason for creating hybrid plants is to yield more crops. This is primarily due to characteristics of hybrid plants which produces favorable traits such as resistance to certain diseases and increase in crop yields than their parent plants.
Answer- Option 1 - yield more crops
