Question

Which of the following statements is true?

1.All genes are dominant.\
2.A hybrid organisms has one recessive gene and one dominant gene.
3.Genotype is the expression of a trait.
4.Only pea plants with two dominant genes for tallness will have a tall phenotype.

Answer 1

A hybrid organism has one recessive gene and one dominant gene.

Step-by-step explanation:

Answer 2

2nd statement is true.

Step-by-step explanation:

Chromosomes are made up of genes and a gene is made up of two copies of alleles. If an organism has two different types of alleles on its chromosomes then it's a hybrid organism else we call it a pure organism/trait.

1. Gene could be dominant or recessive.
2. A phenotype is the expression of a trait.
3. As 'tall' gene is considered to be dominant so so pea plant with even a single copy of 'tall' gene will have a tall phenotype.