Heterozygous vs. Homozygous — Differences & Similarities
Read this topicExplanations 6
- Genotype and Phenotype An organism has two sets of chromosomes, one from each of its parents. On these chromosomes, there are genes. Genes code for a bunch of different proteins…
By Aaron Lauer, Alex Federspiel, Deena Hauze, Mario Janakis, Caroline K, Valeri Natole
- Homozygous vs. Heterozygous When trying to figure out a genotype, or genetic makeup for a single trait (gene), there are two types of allele combinations possible. The genotype …
By Deena Hauze, Alex Federspiel, Mario Janakis
- What Is the Difference Between Heterozygous and Homozygous? Homo\color{#0CB1B1}{\text{Homo}}Homo- means same; -zygous\color{#FFA400}{\text{zygous}}zygous means having genetic ma…
By Sarah Morgan, Mario Janakis, Gabi Slizewska, Alex Federspiel
- What Is the Difference Between Homozygous and Heterozygous? An organism that is homozygous has two copies of the same allele. An allele is one version, like a "flavor", of a gen…
By Sylvia Freeman, Mario Janakis, Caroline K
- Homozygous or Heterozygous? The traits we have depend on our genes. More specifically, they depend on our alleles. For each gene, we have two alleles. The combination of alleles…
By Gabi Slizewska, Mario Janakis
- (Video) Homozygous vs. Heterozygous Genotype by MooMoo Math and Science Heterozygous and homozygous in genetics refer to the alleles in a genotype. In this video, MooMoo Math an…
By Mario Janakis
Problems 31
- Which of the following is not homozygous?
- Which of the following is heterozygous?
- One parent rabbit is homozygous for brown fur and the other parent is homozygous for red fur. The offspring is ________ for the trait.
- If an organism is expressing a recessive phenotype both of its alleles must be woah‾\underline{\phantom{woah}}woah.
- If an organism is expressing a recessive phenotype its alleles must be woah‾\underline{\phantom{woah}}woah.
- If an organism is heterozygous for a gene they are said to be woah‾\underline{\phantom{woah}}woah the recessive allele.
- In order for an organism to be classified as homozygous for a trait, which of the following must be true?
- If an organism has one dominant allele and one recessive allele, what is it classified as?
- Which of the following is false about an organism that is heterozygous for a trait?
- The picture above shows four chromosomes from four different individuals. The chromosomes contain a gene which codes for hair color. Which chromosomes are homozygous for the gene?
- Which of the following best describes a heterozygous organism?
- Which of the following is false regarding a homozygous organism?
- Which of the following shows a homozygous recessive genotype?
- What kind of genotype is MM an example of?
- Two parents, both homozygous recessive for a trait, have a child. What is the genotype of that child?
- Which of the following is considered to be true-breeding?
- An organism that is heterozygous for a certain trait is considered to be a woah‾\underline{\phantom{woah}}woah.
- How long will it take the recessive PTC non-tasting trait to disappear from the gene pool? In other words, how long until the population contains no NN genotypes?
- The image above shows 4 objects which represent alleles. Which allele is homozygous with X?
- What are alleles?
- Suppose pizza is a gene. Which of the following is true about the alleles shown above?
- It was recently discovered that a certain chromosome in a species of Pokemon contains the genes for many common characteristics. A diagram of the chromosome found in one Pokemon…
- It was recently discovered that a certain chromosome in a species of Pokemon contains the genes for many common characteristics. A diagram of the chromosome found in one Pokemon…
- Look at the chromosomes above. Which genes are homozygous? Select all that apply.
- Assume that the soccer ball above is an allele. Which of the following would be homozygous with this allele?
- Which cat is homozygous recessive?
- Suppose the mushroom above is an allele. Which of the following is/are heterozygous to the mushroom above?
- Which of the following correctly describes an individual that is heterozygous for trait X?
- You and your best friend decide to move in together. You are a very neat person, and your home has always been very clean. Your best friend is the opposite, and her home has alw…
- Being funny is a dominant trait. You and your dad are both very funny, but your mom is not. What must be your genotype?
- Word Parts: Given the definition of heterozygous and homozygous, which of the following makes most sense for the meaning of homo- and hetero-?