Multiple Choice
The form of inheritance in which the heterozygous state is expressed as an intermediate is __________.
29. Heredity
Patterns of Inheritance
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If the allele for brown hair is represented by B, it means that __________.
A
the gene for brown hair is carried on the maternally derived chromosome
B
brown hair is a dominant trait
C
the gene for brown hair is carried on the paternally derived chromosome
D
brown hair is a recessive trait
Verified step by step guidance1
Understand that alleles are different forms of a gene. In this case, 'B' represents the allele for brown hair.
Recognize that alleles can be dominant or recessive. A dominant allele is expressed in the phenotype even if only one copy is present.
Identify that the problem is asking about the nature of the allele 'B' for brown hair.
Recall that if an allele is represented by a capital letter (such as 'B'), it typically indicates that the trait is dominant.
Conclude that the statement 'brown hair is a dominant trait' is correct because the allele 'B' is represented by a capital letter, indicating dominance.
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