Homozygous means that the organism has two copies of the same allele for a gene. Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white).

A homozygous phenotype is the product of two identical genes.

Recessive alleles only express their phenotype if an organism carries two identical copies of the recessive allele, meaning it is homozygous for the recessive allele. This means that the genotype of an organism with a dominant phenotype may be either homozygous or heterozygous for the dominant allele.

The heterozygote genotype of Rr results in pink flowers. When the heterozygote has a different, intermediate phenotype compared to the homozygous dominant or homozygous recessive individuals, this is said to be incomplete dominance. lethal alleles. Mutated genes that are capable of causing death.

A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics. For example, having blue eyes (an autosomal recessive trait) is a phenotype; lacking the gene for brown eyes is a genotype.

“Phenotype” simply refers to an observable trait. “Pheno” simply means “observe” and comes from the same root as the word “phenomenon”. And so it’s an observable type of an organism, and it can refer to anything from a common trait, such as height or hair color, to presence or absence of a disease.

Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb. Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes.

A person is said to be homozygous for a gene if they have two identical copies of the gene. Homozygous: You inherit the same version of the gene from each parent, so you have two matching genes. Heterozygous: You inherit a different version of a gene from each parent. They do not match.

Homozygous is a genetic condition where an individual inherits the same alleles for a particular gene from both parents.

Purebred – Also called HOMOZYGOUS and consists of gene pairs with genes that are the SAME. Hybrid – Also called HETEROZYGOUS and consists of gene pairs that are DIFFERENT. Genotype is the actual GENE makeup represented by LETTERS. Phenotype is the PHYSICAL appearance of a trait, such as a YELLOW (or BLUE) body color.

In the first of Mendel’s experiments, a tall purebred pea plant (TT) was crossed with a short purebred pea plant (tt). The result of this cross was all tall hybrid pea plants (Tt).

calves

Like most mammals, newborn dolphin teeth are still embedded in the gums. Their teeth will start erupting in the first 5 weeks of life. Dolphins have one set of teeth to last their whole lifetime and the number of teeth varies considerably from species to species.

Wild killer whales have never killed a person. There have been encounters resulting in injuries, but these are not only exceptionally rare, but most likely the case of mistaken identity. Over the past 100 years, there have been a total of seven noteworthy incidents.

The whales seem to understand people, and are eager to cooperate and create bonds. In fact, the only apparent instances of orcas attacking people have happened at aquatic parks, where the whales have killed trainers. Many experts think these attacks are not malicious, rather a case of play getting out of hand.

Read on to find out more about six species which have a taste for human flesh.

• Hyenas.
• Leopards and tigers.
• Wolves.
• Pigs.

Dolphins have a reputation for being friendly, but they are actually wild animals who should be treated with caution and respect. Interactions with people change dolphin behavior for the worse. They lose their natural wariness, which makes them easy targets for vandalism and shark attack.

While bottlenose dolphins mate frequently throughout adulthood, this is not a species that mates for life. In essence, this circumstance demonstrates the ability for a dolphin to become intensely attached, (perhaps even fall in love) with a human.