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An allele is dominant in a heterozygote when it is?
expressed in the phenotype even when paired with a different allele.
Which allele (gene) exhibits its trait only when it is paired with another allele in a genetic cross?
Recessive allele exhibits its trait only when paired with another recessive allele in a genetic cross.
When a trait is not expressed when paired with a dominant allele is the definiton of?
The trait that is not expressed when paired with a dominant allele is known as a recessive trait. It is masked by the dominant trait in individuals carrying both alleles.
What is an allele that always shows up in an organism's phenotype called - an allele that masks the other allele?
An allele that always shows up in an organism's phenotype and masks the expression of another allele is called dominant. Dominant alleles are always expressed, even when paired with a recessive allele.
What is a reccesive gene?
A recessive gene is a gene that is only expressed if an individual has two copies of it, one inherited from each parent. In the presence of another dominant gene, the recessive gene's trait is not expressed.
An allele is dominant in a heterozygote when it is?
expressed in the phenotype even when paired with a different allele.
Which allele (gene) exhibits its trait only when it is paired with another allele in a genetic cross?
Recessive allele exhibits its trait only when paired with another recessive allele in a genetic cross.
Is homologous dominant?
In genetics, alleles can be classified as either dominant or recessive. The term "homologous" refers to the pairing of chromosomes in meiosis. Whether an allele is dominant or recessive depends on its effect on the phenotype when paired with another allele. Homologous chromosomes do not determine the dominance of an allele.
What gene is masked if it is paired with a dominant gene?
The different forms of a gene are called alleles. In Mendelian genetics, a gene has a dominant allele and a recessive allele. The dominant allele masks the recessive allele if present. So there are two possible dominant genotypes: homozygous dominant, in which both dominant alleles are present; and heterozygous, in which one allele is dominant and the other allele is recessive. The only way to express a recessive trait is to have the homozygous recessive genotype.
What do dominant and recessive alleles have in common?
Alleles are different types of a gene. Each gene controls a characteristic and they is usually a recessive allele and a dominant one. The main similarity is that they both control a certain characteristic!
What is the allele that will always show physically?
The dominant allele will always show physically in an individual, while the recessive allele will only be expressed if paired with another recessive allele.
When a trait is not expressed when paired with a dominant allele is the definiton of?
The trait that is not expressed when paired with a dominant allele is known as a recessive trait. It is masked by the dominant trait in individuals carrying both alleles.
If a gene has one completely dominant allele and two recessive alleles how many different traits can these alleles produce?
A gene with one completely dominant allele and two recessive alleles can produce two different traits. The dominant allele will express its trait regardless of whether it is paired with another dominant or a recessive allele, while the two recessive alleles will express their trait only when paired together. Therefore, the possible combinations of alleles result in one dominant trait and one recessive trait.
A trait that is not expressed when paired with a dominant allele is?
recessive (sraight out of my biology lesson!)
What is an allele that always shows up in an organism's phenotype called - an allele that masks the other allele?
An allele that always shows up in an organism's phenotype and masks the expression of another allele is called dominant. Dominant alleles are always expressed, even when paired with a recessive allele.
What term describes two paired allels that are different from each other?
The term that describes two paired alleles that are different from each other is "heterozygous." In a heterozygous genotype, one allele may be dominant while the other is recessive, leading to variations in phenotype. This genetic diversity is crucial for evolution and adaptation in populations.
Does a recessive allele need another recessive allele to be expressed?
Yes, a recessive allele needs to be paired with another recessive allele in order to be expressed. This is because recessive alleles are only expressed when an individual has two copies of the recessive allele, one from each parent. If an individual has one dominant allele and one recessive allele for a particular trait, the dominant allele will be expressed.
