If a particular trait had a gene that had a possibility of 9 alleles in the population of a species, which of the following is true regarding this gene?
A: The diploid number for the alleles would be 18 for this organism.
B: The haploid number for the alleles would be 9 for htis organism.
C: The maximum number of alleles for this gene would be 2.
D: There is infinite variety in the expression of this trait in one organism.
A: The diploid number for the alleles would be 18 for this organism.
B: The haploid number for the alleles would be 9 for htis organism.
C: The maximum number of alleles for this gene would be 2.
D: There is infinite variety in the expression of this trait in one organism.
举一反三
- If an organism is said to be true breeding for a particular trait, this means that A: they are heterozygous for that trait. B: they are homozygous for that trait. C: they are incompletely dominant for that trait. D: they have two kinds of alleles for that trait.
- Recessive alleles form no gene products, and thus are not expressed. A: 正确 B: 错误
- 中国大学MOOC: Recessive alleles form no gene products, and thus are not expressed.
- An organism is said to be ( ) if it carries two identical alleles for a certain trait. A: heterozygous B: homologous C: homozygous D: monohybrid E: dihybrid
- What is a genetically modified organism (GMO)? A: a plant with certain genes removed. B: an organism with an artificially altered genome. C: a hybrid organism. D: any agricultural organism produced by breeding or biotechnology.