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If we represent dominant trait (wrinkled seeds) with A and recessive trait (non-wrinkled seeds) with a, then genotypes are AA (dominant homozygous), Aa (heterozygous), and aa (recessive homozygous). The phenotype of wrinkled seed is determined by genotypes either Aa or AA. Since the cross of a plant with wrinkled seed with a plant with non-wrinkled sees gives only wrinkled-seeded offspring, the plant with wrinkled seeds must be dominant heterozygous.
Let's look at both examples.
If wrinked-seeded parent contains one non-wrinkled allele, it must be heterozygous (Aa):
Parents: Aa x aa
Offspring: Aa Aa aa aa
So, the 50% of offspring has wrinkled seeds and 50% has <span>non-wrinkled seeds.
If </span><span>the wrinkled-seeded parent does not contain any non-wrinkled allele:
</span>Parents: AA x aa
Offspring: Aa<span> Aa Aa Aa
</span><span>
Thus, al</span><span>l of the offspring are heterozygous and all of them have wrinkled seeds.</span>
Answer:
may be the answer is
DNA polymerase is an enzyme that works to transport DNA from the nucleus to the cytoplasm.
Answer AND Explanation:
Respiration by both plants and animals as well as by microorganisms converts some of the organic compounds into carbon dioxide. The latter is released back to the atmosphere and reused by green plants.
Water loss is a problem for desert plants; Therefore, many plants have adaptations in their leaves to avoid losing large amounts of water. Some of these leaf adaptations are: (1) hairy or fuzzy leaves, (2) small leaves (3) curled leaves, (4) wax-coated leaves, and (5) green stems but no leaves.
Plants that live in this type of desert include the salt shrub, buckwheat shrub, black shrub, rice grass, little horse brush, black sage, and chrysothamnus. Some animals have special adaptations to cope with the desert heat and lack of water.
Learn more about desert trait below.
what is a the desert - Brainly.in
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Answer:
pollution
Explanation:
It is damaging to the environment and organisms within it.
