QuestenaUn entraînement qui indique quoi revoir ensuite
RechercheCréer un test
Question 51

A pea plant has the genotype Bb. Which gametes can it make for this gene?

  1. Gametes carrying both alleles at once
  2. Only gametes carrying the dominant allele B
  3. Gametes carrying B and gametes carrying bBonne réponse
  4. Only gametes carrying the recessive allele b

Explication

The two alleles separate as gametes are formed, so each gamete receives one of them and the plant makes the two types in equal proportion. A gamete holding both symbols would double the allele count, leaving the offspring with three alleles of the gene after fertilisation.

Continuer avec ce test

Commencer l’entraînement
Comprendre ce thème (≈6 min)Retour au test
Question 51: A pea plant has the genotype Bb. Which gametes can it make… · Genetics Basics · Questena