Which nutrient taken as a prenatal supplement is associated with a lower incidence of neural tube defects?

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Folate is taken as a prenatal supplement has been found to be associated with a lower incidence of neural tube defects

Vitamin B9 ( folate)– Prevents Neural tube defects and Spina Bifida in baby. Vitamin B12 – Promotes blood formation, helps prevent and even fight birth defects that affect the spine and central nervous system

Unfortunately, even high quality prenatal vitamins often contain folic acid instead of the natural folate-forms

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Use the Punnett square to predict the genotype for the parent organism whose genotype is unknown and

Katyanochek1 [597]

Answer: The genotype for the parent organism whose genotype is unknown is Ff.

Explanation: Let (F) represent the allele for purple which is dominant over (f) and (f) represent the allele for white.

The parent organism whose genotype is unknown is heterozygous for purple colour (Ff).

A cross between Ff and ff will produce four offsprings: two of which are Ff (heterozygous for purple colour) and two are ff (white).

Ff x ff = Ff, Ff, ff and ff.

Since (F) is dominant over (f), (Ff) will manifest as purple while (ff) will manifest as white. Therefore, half of the offsprings are purple while the other half are white.

See the attached punnet square for more information