Examkin

Soru

Zorluk: OrtaBasic Genetics Terminology and Concepts

In genetic analysis of diploid organisms, the specific combination of alleles inherited by an individual for a particular gene (such as TtTt) determines its observable physical characteristics. Which pair of terms correctly identifies the symbolic genetic makeup of the organism (TtTt) and its state of having two different alleles for that gene, respectively?

  1. Genotype and heterozygousCevap
  2. B
    Phenotype and heterozygous
  3. C
    Genotype and homozygous
  4. D
    Phenotype and homozygous

Cevap

The correct pair of terms is genotype for the genetic constitution and heterozygous for the presence of two different alleles.
The term genotype refers specifically to the allele combination (TtTt) of an organism, while heterozygous describes an individual carrying two different alleles (TT and tt) for a specific locus.

Adım Adım Çözüm

1
Identify the term for the genetic constitution
The total genetic constitution of an individual, represented by allele symbols like TtTt, is called its genotype.
Genotype specifies the precise allele combination inherited from the parents.
2
Determine the state of the alleles in TtTt
Because TtTt consists of two non-identical alleles (TT and tt), the organism is in a heterozygous condition.
A homozygous condition requires two identical alleles (e.g., TTTT or tttt).

Anahtar Kavram

Genotype vs Phenotype and Homozygous vs Heterozygous terminology
Bu soruyu puanla

Konular

Basic Genetics Terminology and Concepts

Bu konudan daha fazla soru