Biology, 22.07.2019 22:00 tdahna0403

Purple petal color in pea plants is dominant to white petal color. two heterozygous pea plants are crossed. what ratio of the offspring will have white petals? : express this in a percentage. %

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Answer from: 12290737

If both parents are heterozygous for the same trait, it means that both parents have both of the alleles, one for purple petals and one for white petals, so the crossing will lead to an offspring that will present the following genotype proportions:
Purple-colored petals (dominant characteristic, both alleles dominant) - 1/4
Purple-colored petals (dominant characteristic, one allele dominant, one allele recessive) - 2/4
White-colored petals (dominant characteristic, both alleles recessive) - 1/4

The ratio of offspring to have white petals will be 1/4 - 25%.

Answer from: kashishmehta917

The ratio of the offspring will have white petals is 1/4. Which means 25% of the offspring will have white petals.

According To the Mendel's Law:

When two heterogygous parents cross,

Phenotype ratio of offspring with dominant and recessive character is 3:1.Genotype ratio of WW : Ww : ww is 1:2:1.

Find the attachment for cross.

Hence, we can conclude that the ratio of the offspring will have white petals is 1/4. Which means 25% of the offspring will have white petals.

To know more about Law of Dominance, refer to the link:

link

Answer from: Quest

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

Answer from: Quest

Mutations are changes in the dna

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