False.
There are several good mutations that have ensured the survival of species. Typically helpful mutations help the creature adapt to its environment or protect itself from predators.
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U·ni·cel·lu·laradjective
BIOLOGY(of protozoans, certain algae and spores, etc.) consisting of a single cell.(of an evolutionary or developmental stage) characterized by the formation or presence of a single cell or cells.
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<span>When sediments move and settle somewhere, they are being deposited. When, over a long time, layers and layers of sediments get deposited on top of each other, the weight of the top layers presses down on the bottom layers, forming them into rock called sedimentary rock. The oldest layers are on the bottom, and the youngest layers are on the top. Because sediments sometimes include once-living organisms, sedimentary rock often contains a lot of fossils. </span>
Answer:
The genotype of the brown parent would be heterozygous.
Explanation:
As albino is a recessive trait, both the alleles should be recessive for this trait to occur.
A punnet square is a diagram which is made to illustrate the possible genotype of the offsprings.
If the brown parent will be homozygous, then a cross with albino parent will produce offsprings with brown colour having heterozygous geneotype.
For production of albinos the brown parent should be heterozygous for the trait.