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life science paper 2 answers
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BIOLOGICAL TERMS: PAPER 2Give the correct biological term for the following descriptions.
DESCRIPTIONS BIOLOGICAL TERM
1. An allele that does not influence the phenotype Recessive allele
when found in the heterozygous condition.
2. The position of a gene on a chromosome. Locus
3. The physical and functional expression of a gene. Phenotype
4. Chromosomes that are not responsible for sex Autosomes
determination.
5. The process of finding a desirable gene, isolating Genetic modification
it and then moving it into the cells of another
organisms.
6. The two parts of a chromosome held together by Chromatids
a centromere.
7. A section of a DNA molecule that codes for a Gene
specific characteristic.
8. The production of genetically identical copy of an Cloning
organism using biotechnology.
9. The deliberate breeding of organisms for Artificial selection/ selective
desirable characteristics selected by humans. breeding
10. The explanation that species experience long Punctuated equilibrium
periods without physical change, followed by short
periods of rapid physical change.
11. The phase of meiosis during which homologous Anaphase I
chromosomes separate and start moving towards
opposite poles.
12. The defect in cell division that leads to Down Non-dysjunction
syndrome.
13. The structure that is made up of two chromatids Chromosome
joined by a centromere.
, 14. An explanation for something that has been Theory
observed in nature and which can be supported by
facts, laws and tested hypotheses.
15. Similar structures on different organisms that Homologous structures
suggest they have a common ancestor.
16. The complete set of chromosomes in the cell of karyotype
an organism.
17. A bar code pattern formed from DNA. DNA Profiling
19. The bonds formed between amino acids. Peptide bonds
20. A representation of the number, shape and Karyotype
arrangement of all the chromosomes in the nucleus
of a somatic cell.
21. Openings in the nuclear membrane that allow Nuclear pores
mRNA to leave the nucleus.
22. A tentative explanation of a phenomenon that Hypothesis
can be tested.
23. The distribution of species in different parts of Biogeography
the world.
24. Chromosomes that carry the same set of genes. Homologous chromosomes
25. Two or more alternative forms of a gene at the Allele
same locus.
26. The structure responsible for pulling Spindle fibres
chromosomes to the poles of an animal cell during
cell division.
27. A phase in the cell cycle that occurs before cell Interphase
division.
28. A diagrammatic representation showing Phylogenetic diagram/
possible evolutionary relationships among different Cladogram
species.
29. The type of vision shared by apes and humans Binocular vision
that allows for depth perception.
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