Answer: A recessive allele is only expressed if the individual has two copies and does not have the dominant allele of that gene.
Explanation: Recessive alleles are represented by a lower case letter, for example, a. The allele for blue eyes is recessive.
Answer:
The correct match for the terms with their description is given below:
Explanation:
- Gene: f) A sequence of nucleotides in DNA that codes for a functional product such as a protein.
- Nucleotide: d) The building blocks of nucleic acids, includes a phosphate, sugar and organic base.
- Chromosome: e) The structure that carries the DNA sequences
- Frameshift mutation a) The loss or addition of a nucleotide pair in a DNA strand.
- Point mutation: c) The substitution of one nucleotide pair for another in DNA strand.
- Genotype: g) The entire genetic makeup of an organism
- Phenotype: b) The physical and biochemical expression of the genotype.
Answer:
exposed ovules
Explanation:
Gymnosperms are a type of flowerless plant that tend to produce cones and seeds. This is why the name refers to "naked seed", seeing since the gymnosperm seeds are not positioned within an ovary. Therefore the presence of exposed ovules or the structure that contains the seeds in a place would immediately indicate that this is, in fact, a gymnosperm.
Answer:
Coal.
Explanation:
Steam power plant has the lowest efficiency in electricity production which can only be run with the use of fossil fuels such as coal. The efficiency of this power plant is the lowest because large amount of coal is converted into smoke and other gases and very less amount of coal into heat energy. This coal is used to produce heat energy which can be used in the heating of water to produce steam. This steam is used to move turbines which turn mechanical energy into electric energy.
