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Briefly explain the following assessment methods - . self-assessment. Peer assessment.group assessment
Briefly explain the concept "continuous assessment" in a natural science class.
Discuss how you would expand concepts, and design and organize learning experiences according to your own local circumstances when teaching Ecosystems and Structures (including indigenous housing); at grade 6 level.
What must Natural science educators pay attention to if they were to transform child science into true scientific understanding?
The history of science is full of great works that have marked a turning point in the development of a branch of knowledge, and in which the proposals for a new theoretical frame of reference or a new systematization of the know facts. Explain this argument throughly with examples.
In the presence of O2 after performing a running race, the body works on
1. A rice breeder obtained a triple heterozygote carrying the three recessive alleles for albino flowers (al), brown awns (b), and fuzzy leaves (fu), all paired with their normal wild -type alleles. This triple heterozygote was testcrosses .The progeny phenotypes were:
Number Phenotypes Genotype
170 wild type al+ b+ fu+
150 albino, brown, al b fu
fuzzy
5 brown al+ b fu+
3 albino, fuzzy al b+ fu
710 albino al b+ fu+
698 brown, fuzzy al+ b fu
42 albino, brown al+ b+ fu
38 albino, brown al b fu+
I. Are any of the genes linked?
II. If they are linked, draw a map labelled with map distances
III.The triple heterozygote was originally made by crossing two pure lines . What were their genotypes?
IV. Calculate interference and say what you think of its signicane.
2. Consider the following segment of DNA, which is part of a much longer molecules constituting a chromosome:
5'....ATTCGTACGATCGACTGACTGACAGTC...3'
3'....TAAGCATGCTAGCTGACTGACTGTCAG....5'
a. which will be the template for the leading strand?
b. Which strand will be synthesized discontinuously?
c. Which strand will be synthesized as Okazaku fragments?
d. Draw the molecules when the DNA polymerase is halfway along this segment.
e. Draw the two complete daughter molecules.
1. Each mutant shown below was derived from the wild type:
Wild type 5' GAA CTC GAG CTT AAT 3'
Mutant 1 5' GAA CTC GAG CTT AAT 3'
Mutant 2 5' GAA CTC AAG CTT AAT 3'
Mutant 3 5' GAA CTC GAG CTT TAA 3'
Classify the mutation at both the DNA and protein levels.
Can you please explain the applications of Solubility in the Biology field?
