hairlateral cell segregationortho‐ and para‐cortical cellsThe final shape of a head hair is predetermined through a variety of factors during its formation in the follicle. These are genetic pathways, specific growth factors, cell differentiation and segregation, etc., with spatial as well as ...
My sister has curly hair while I have straight hair. This is an example of ___. A. genetic variation B. environmental variation C. genetic inheritance D. none of the above 相关知识点: 试题来源: 解析 A。本题主要考查对遗传变异的理解。姐姐有卷发而我有直发,这是遗传变异的一个例子,不同的...
C. Some people have curly hair while others have straight hair. D. A species has only one type of diet. 相关知识点: 试题来源: 解析 C。“genetic variation”指的是遗传变异。一些人有卷发而另一些人有直发是遗传变异的例子。选项 A 说所有个体有相同的眼睛颜色不是遗传变异;选项 B 所有植物长到...
A. All people have the same eye color. B. All plants have the same height. C. Some people have curly hair and some have straight hair. D. All animals have the same number of legs. 相关知识点: 试题来源: 解析 C。解析:遗传变异的例子是有些人有卷发,有些人有直发。所有人有相同的眼睛...
You might not look like other members of your immediate family and you want to know where your green eyes or curly hair come from. You may be curious about why you have such a quick temper. You may even be suffering from a medical condition and want to know if something in your ...
" You might notlook like othermembers of your immediate family and you want to know where your green eyes or curly hair come from.You may be curious about why you have such a quick temper. You may even be suffering from a medicalcondtion and wantto know ifsomething in your genetic make...
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Just like your curly or straight hair is inherited, SNPs (variant segments) on genes that control methylation patterns are also inherited. "The genetic variations that affect methylation-related enzyme synthesis are also inherited," Blaiwes explained. ...
Assume that curly hair (C) is dominant to straight hair (c). A pair of curly-haired parents have a straight-haired child. What are the parental genotypes? Which cell types are formed at the end of the first meiotic division? Name the process of cell division by somatic cells that result...
One example of incomplete dominance in humans is wavy hair. There are two alleles for hair texture, curly or straight. If a person is homozygous for either type of these alleles, they either have curly hair or they have straight hair. However, if a person is heterozygous for hair texture,...