The seed develops from the
a. gametophyte.
b. ovary.
c. ovule.
d. pollen grain.
e. zygote.
Answer: c
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A large portion (45%) of the human genome is composed of
A. introns. B. exons. C. templates. D. transposons. E. pseudogenes.
Alleles are ____
a. sex chromosomes b. somatic cells c. crossover sites d. attachment sites for microtubules e. different versions of the same gene
If a scientist found very high concentrations of organic biomarkers deep inside a 3.9 billion year old meteorite, how would this effect the explanation of the origins of life on Earth?
A. This would prove the extraterrestrial origin of life. B. This would disprove the terrestrial origin of life. C. This would provide evidence for the extraterrestrial origin of life. D. This would provide evidence for the uniqueness of life on earth.
Gene families can contain two members or hundreds of members. The duplicated copies can either remain tandemly associated or can be dispersed by recombination to different chromosomes
Give two examples of genes that are present in large tandem arrays in eukaryotic genomes. What will be an ideal response?