百度试题 结果1 题目What is the basic unit of heredity? A. Chromosome B. Gene C. Allele D. Trait 相关知识点: 试题来源: 解析 B。中文解析:文章中明确提到“The basic unit of heredity is the gene.”,遗传的基本单位是基因。反馈 收藏
A pure trait is also known as a homozygous trait. Homozygous traits are either a combination of the same two dominant alleles or the same two recessive alleles. A hybrid trait is also known as a heterozygous trait, and is the pairing of a dominant and recessive allele. The dominant allele ...
What is a gene? What is an allele? Give an example of 2 alleles of a human gene. What is the relationship between mutation and alleles? Which term best describes the separate expression of both alleles for a single trait in the same cell? A. multiple alleles B. codominance C. pleiotropy...
What is the genotype of a trait for which the two alleles an individual carries differ from each other? What are the differences of a genotype and a phenotype? What are multiple alleles? Is there dominance in multiple alleles? What does it ...
The short answer is that an allele is a variant form of a gene. Explained in greater detail, each gene resides at a specific locus (location on a chromosome) in two copies, one copy of the gene inherited from each parent. The copies, however, are not necessarily the same. When the co...
A child receives one allele for eye color from the mother and one from the father. When a child receives two alleles for brown eyes, the gene ishomozygous dominantfor that trait. If a child receives two different alleles for eye color, the gene for eye color isheterozygous. ...
What is a gene? This seems like a simple question, but it is actually quite complicated. The definition of a gene has changed over time and is the subject of current debate.Before modern-day molecular biology, genes were defined as the units that caused a particular trait to be inherited....
Why is it called non Mendelian genetics? Like skin color,many other human traits have more complicated modes of inheritance thanMendelian traits. Such modes of inheritance are called non-Mendelian inheritance , and they include inheritance of multiple allele traits, traits with codominance or incomplet...
You can use TaqMan 5'-nuclease chemistry to determine whether a given SNP is present in your sample. TaqMan SNP genotyping assays include both a primer pair to amplify the target area and two allele-specific probes to detect your target SNP alleles ...
Sickle cell trait is an example of antagonistic pleiotropy in that the Hb-S allele mutation of the hemoglobin gene provides advantages and disadvantages for survival. Those who arehomozygousfor the Hb-S allele, meaning that they have two Hb-S alleles of the hemoglobin gene, have a short life...