An example of homozygous recessive phenotype would be a red-flowered pea plant. The white-flowered pea plant expresses the dominant phenotype.Know More
Organisms carry both dominant and recessive alleles of a gene. Such organisms would be called carriers of a recessive allele. In this instance, the organism would only show the dominant phenotype of the gene. Cystic fibrosis is another homozygous recessive phenotype. Other diseases, such as Huntington's, are also expressed through the recessive phenotype. However, individuals with Huntington's have either a mutant-mutant expression or a normal-mutant one.
Homozygous means that the organism contains two copies of the same allele for a particular gene. Homozygous recessive means that the organism carries two recessive alleles. Such as with the example above, the white-flowered pea plant has two white alleles to make it be expressed that way. Carriers of the recessive gene are considered to be heterozygous, meaning they have only one allele of each of the dominant and recessive alleles. Huntington's disease is considered to be autosomal dominant, so an individual with this disease could either have a heterozygous gene or a homozygous dominant one. The genotype is the combination of alleles for a certain gene. The genotypes provide the framework for the phenotype that will be expressed.Learn more in Biology
Examples of limiting factors include competition, parasitism, predation, disease, abnormal weather patterns, natural calamities, seasonal cycles and human activities. In terms of population growth, limiting factors can be classified into density-dependent factors and density-independent factors.Full Answer >
Examples of bioengineering include biomedical electronics, cellular engineering and medical imaging. Bioengineering has a wide range of applications in biomechanics, which is the study of the mechanics of the body, and clinical engineering. Products developed by bioengineers include prosthetic limbs and devices for administering medication in hospitals.Full Answer >
In humans, common examples of inherited traits include hair, skin and eye color, hair type, finger and toe length, dimples, freckles, body type, height, hand dominance, ear shape, mathematical aptitude and susceptibility to certain diseases, such as color blindness, cystic fibrosis and sickle cell anemia. The inherent traits of an individual are determined by the smallest functional unit of heredity known as a gene.Full Answer >
In a general sense, every distinct species on earth is an example of macroevolution. Each species is distinct from every other species in the world, yet it shares a common ancestry with all other forms of life. Macroevolution is the process by which humans diverged from apes, apes from other mammals, mammals from reptiles and air-breathing vertebrates from fish.Full Answer >