Global Journal of Educational Research · November 2017
By Benjamin, Etobro akpezi
“Misconceptions of genetics concepts among pre-service teachers”
Publisher: –
16
Pp. 121-128
2017
Misconceptions of genetics concepts among pre-service teachers
Type: Empirical
Data collection method: Test
Number of subjects, range: Large — 31 or more
Grade and age of subjects: Adult — over 18 years
Diploid
- Cells are formed as a result of meiosis.
- Centrioles are found in the nucleus of a cell.
- Meiosis occurs in the reproductive (sperm or egg).
- The centrosome and centrioles is essentially the same thing.
- Crossing over occurs at the metaphase-I of the meiosis.
- All humans have DNA, as do animals, plants, and most bacteria and fungi. 88
DNA
- DNA replication takes place only in the meiosis process.
- Half of an offspring’s DNA is determined by maternal side, and half is by the paternal side.
- DNA replication occurs in cytokinesis during the process of cell division.
- Diploid (2n) cells are formed as a result of meiosis.
Genes
- Genes determine everything from our sex .There is a conception of genes not only determining traits.
- Genetic drift only occurs in small populations.
- All cells have nuclei. 64
Mendelian Inheritance
- Dominant alleles will take over a population and create the prominent phenotype 79
- If all members on both sides of a family is tall, the offspring are going to be tall.
- Deleterious alleles will go into extinction because of the present of dominant alleles.