An association between organisms of different species in which both partners benefit is known as_ i . An association between organisms of different species in which one partner benefits and the other neither benefits nor is harmed is known as ii. The statement given above is completed by the information in row

A. ammensalisim parasitism
B. parasitism amenalsim
c. commensalism mutalism
d. mutalsim commensalisim

When studying the Hardy-Weinberg principle, if the assumptions are not met for a gene
a) the population will not evolve for that gene
b)the population always evolve for that gene
c)the population may evolve for that gene
d)the population can not evolve for that gene

Primary spermatocytes are produced from the spermatogonium in_ i . Spermatids are produced from secondary spermatocytes in_ i . The statement given above is completed by the information in row
Row
A. Mitosis Meiosis I
B. Mitosis Mitosis
C. Mitosis Meiosis II
D. Meiosis I Meiosis II

In the Drosophila, the gene for red colour is present on the X-chromosome, and is a dominant trait. A female fly with red eyes in the F generation can be produced if it inherits an X-chromosome with
a) dominant allele from father only
b) dominant allele from either mother or father c) recessive alleles from each parent
d) dominant alleles from each parent

Acquired immunodeficiency syndrome (AIDS) is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV. The virus replicates in human cells, and is known as a retrovirus. It reverses the direction of the flow of genetic information that normally occurs in eukaryotic cells. Which of the following directions of information flow occurs in this retrovirus?
a) RNA – DNA
b) DNA – RNA
c) RNA – protein
d) DNA – protein

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