What characteristics do most pea plants have?
Plant & Cross
- Pea shape (round or wrinkled)
- Pea color (green or yellow)
- Pod shape (constricted or inflated)
- Pod color (green or yellow)
- Flower color (purple or white)
- Plant size (tall or dwarf)
- Position of flowers (axial or terminal)
What are the 7 traits that Mendel studied?
Mendel used seven pea plant traits in his experiments which include flower color (purple or white), flower position (axil or terminal), stem length (long or short), seed shape (round or wrinkled), seed color (yellow or green), pod shape (inflated or constricted), and pod color (yellow or green).
What are the genotypes of a homozygous and a heterozygous tall pea plant?
What are the genotypes of a homozygous and a heterozygous tall pea plant? DD is homozygous dominant, gives phenotype tall. Dd is heterozygous, also gives the phenotype tall.
Why does Mendel choose pea plant for his experiment?
For Gregor Mendel, pea plants were fundamental in allowing him to understand the means by which traits are inherited between parent and offspring. He chose pea plants because they were easy to grow, could be bred rapidly, and had several observable characteristics, like petal color and pea color.
What is the dominant shape of a pea pod and why?
The dominant shape of a pea pod is smooth. You know the smooth trait shows up in the F1. That’s why its allele is a capital letter.
What are the 4 patterns of inheritance?
Several basic modes of inheritance exist for single-gene disorders: autosomal dominant, autosomal recessive, X-linked dominant, and X-linked recessive. However, not all genetic conditions will follow these patterns, and other rare forms of inheritance such as mitochondrial inheritance exist.
What are Mendel’s principles?
The key principles of Mendelian inheritance are summed up by Mendel’s three laws: the Law of Independent Assortment, Law of Dominance, and Law of Segregation.
What was Gregor Mendel’s experiment?
A monk, Mendel discovered the basic principles of heredity through experiments in his monastery’s garden. His experiments showed that the inheritance of certain traits in pea plants follows particular patterns, subsequently becoming the foundation of modern genetics and leading to the study of heredity.
What is a Codominance?
Codominance is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. … In codominance, however, neither allele is recessive and the phenotypes of both alleles are expressed.
What happens if a homozygous tall pea plant and a homozygous short pea plant are crossed?
Answer and Explanation:
a homozygous tall pea plant will have the genotype TT. A homozygous short pea plant will have the genotype tt. A cross between a homozygous tall tree…
Is TT a heterozygous or homozygous?
Genotype and PhenotypeGenotypeDefinitionExampleHomozygousTwo of the same alleleTT or ttHeterozygousOne dominant allele and one recessive alleleTtHomozygous dominantTwo dominant allelesTTHomozygous recessiveTwo recessive allelestt
How do you determine if a plant is homozygous or heterozygous?
An organism can be homozygous dominant, if it carries two copies of the same dominant allele, or homozygous recessive, if it carries two copies of the same recessive allele. Heterozygous means that an organism has two different alleles of a gene.
Why were Mendel’s ideas not accepted?
Mendel’s work was not accepted by most scientists when he was alive for three main reasons: when he presented his work to other scientists he did not communicate it well so they did not really understand it. he could not explain the science behind why characteristics were inherited.
Do pea plants reproduce asexually?
Like most familiar animals and plants, peas undergo sexual reproduction, where a sperm cell and an egg cell are required to produce offspring. … Each flower of a pea plant produces both pollen and ovules, which are enclosed together in a structure called a keel.