Answer:
1. A locatable region of genomic sequence, corresponding to a unit of inheritance which is associated with regulatory regions, transcribed regions, and/or other functional sequence regions.
2. Were historically defined as the unit of hereditary material that causes a phenotype.
3. May be composed of a union of genomic sequences encoding a coherent set of potentially overlapping functional products.
Explanation:
A gene is a sequence of nucleotide present on a chromosome which determines a trait of an organism. The gene term was provided by the Wilhelm Johannsen in 1909 to refer to the hereditary unit of the organisms.
The genes in eukaryotes are not necessary that they will code for the protein as there are some RNA molecules which are not translated into the protein like rRNA and tRNA molecules.
The sequence of a gene in eukaryotes is a union of the regulatory of the functional and transcribed genes.
Thus, the selected option is correct.
Answer:
Simply saying it is cross that involves two traits
Explanation:
In dihybrid cross the phenotypes of two genes are followed through the mating of individuals which carry multiple alleles at those gene loci. In other words, two genes controlling two different phenotypic traits are observed in dihybrid cross.
"Dihybrid cross",means
"di" indicates that there are two traits involved for example A and B and
"hybrid" indicates that each trait has two different allele, for example A and a or B and b.
b. Both would have the same amount
Answer:
"Flowering Seed Plants"
Explanation:
Angiosperms are vascular plants, which bears seeds in fruits or mature ovaries. Angiosperm forms flower that carries reproductive organs and fruits.
Question options:
(1)nutrition, excretion, and reproduction
(2)respiration, nutrition, and excretion
(3)movement, reproduction, and nutrition
(4)coordination, movement, and growth
Answer:
(2)respiration, nutrition, and excretion
Explanation:
The placenta between the mother and the fetus has three main function.
- Attach the fetus to the uterine wall.
- Provide nutrients to the fetus.
- Allow the fetus to transfer waste products to the mother's blood.
The placenta refers to an organ in the uterus of mother that is responsible for nourishing and maintaining the fetus through the umbilical cord. The placenta also has many other functions but primarily it plays critical roles in the nutrition, respiration and excretion of the fetus. Its other functions include: production of hormones, production of immunity for the fetus for prevention from infections, etc.
