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Essential nutrients
These are the organic compounds present in the food that provide nourishment essential for the development and growth of our body. Nutrients not only provide us with the required energy to carry out various biological processes but are also the building blocks for repair and growth in our bodies.
Vitamins
The vitamins are organic molecules required in low concentration for the proper functioning of the body. They cannot be generated in the organism and are taken into the body through the diet. The lack of proper vitamins results in diverse deficiency disorders. They are thus called essential nutrients. The important vitamins are vitamin A, vitamin B complex, vitamin C, vitamin D, vitamin K, and vitamin E.
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- From the BbHh x BbHh dihybrid cross where BB or Bb represented full melanin and bb represented no melanin, and where HH or Hh represented black fur and hh represented brown fur, interpret the 9 : 3 : 3 : 1 phenotypic result from the F generation. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 9 had no melanin and black fur, 3 had no melanin and brown fur, 3 had no melanin and black fur, 1 had no melanin and brown fur b 9 had no melanin and brown fur, 3 had full melanin and brown fur, 3 had no melanin and black fur, 1 had full melanin and black fur c 9 had no melanin and black fur, 3 had full melanin and brown fur, 3 had no melanin and black fur, 1 had no melanin and brown fur d 9 had full melanin and black fur, 3 had full melanin and brown fur, 3 had no melanin and black fur, 1 had no melanin and brown furplease show genotypic and phenotypic ratio 1.A male French Alpine (WwHH) is crossed with a female French Alpine (wwHh). Where W-White, w-gray, H-Horned, h-Polled. Give the phenotypic and genotypic ratio of their offspring.If you cross a fruit fly with the genotype Gg, Hh, II, Jj to another fruit fly with genotype Gg, Hh, Ii, jjwhat fraction of their offspring do you expect to have genotype Gg, HH, II, jj? Show your work using individual punnett square for each trait then multiplying the fractions found through the punnett squares
- Using the two Hardy-Weinberg equations, calculate the allelic and genotypic frequencies. Tongue rollers [R_-]= 840, Non rollers [rr] = 160, Total = 1000 1. What are the phenotypic frequencies for tongue rollers? 0.84 2. What are the phenotypic frequencies for non-tongue rollers? 0.16 3. What is the allelic frequency for r? 0.4 4. What is the allelic frequency for R? 0.6 5. What is the homozygous dominant frequency? 6. What is the heterozygous frequency? 7. What is the homozygous recessive frequency?In cats, a black cat when crossed with a white cat produces a tabby which appears to be a grey cat striped with black and white fur. Upload solutions in the google classroom. What is the F1 phenotypic ratio of a cross between a black and white cats. Write numerical answer only. When tabby cats are crossed with black cats. What is the phenotypic ratio of the offspring? Write numerical answers only. When tabby cats are crossed with black cats. What are the phenotypes of the offspring? Write in CAPITAL LETTERS and separate with comma. When tabby cats are crossed with white cats. What is the phenotypic ratio of the offspring? Write numerical answers only. What is the specific mode of inheritance behind this phenomenon? White in CAPITAL letters only.Use the following information to answer the next two questions.In cattle, a polled or hornless trait (P) is dominant over a horned trait(p).A polled bull mated with three different cows, and the following calves were born in the spring. Cow Phenotype F1 Generation Phenotype Cow 1 - Horned Calf 1 - Horned Cow 2 - Polled Calf 2 - Horned Cow 3 - Polled Calf 3 - Polled Which of the following rows correctly identifies the genotypes of the cattle? Select one: a. Bull - Pp Calf 2 - pp b. Cow 3 - Pp Calf 3 - pp c. Cow 2 - pp Calf 1 - Pp d. Cow 1 - pp Bull - PP
- In a dihybrid cross, if two heterozygous individuals for both genes are crossed, what will be the expected phenotypic ratios? (In the following order: dominant for both traits; dominant for the first trait recessive for the second; recessive for the first trait and dominant for the second; recessive for both traits) show your solution using punnet squareIn a species of fish, the allele for long fins (F) is dominant over the allele for short fins (f). What will be the genotype and phenotype ratios for offspring do we get if we cross a long-finned homozygous male fish with heterozygous long-finned female fish? Questions: a. What are the possible genotypes of the egg the woman can produce? b. What are the possible genotypes of the sperm the man can produce? c. What is the genotype ratio for the offspring? d. What is the phenotype ratio for the offspring?Phenotypically wild-type female Drosophila, whose mothers had spineless bristles (ss) and fathers had ebony bodies (e), produced the following offspring when crossed to homozygous males with ebony bodies and spineless bristles: 43 ebony bodies and spineless bristles 49 wild type 336 ebony bodies, wild type bristles 328 spineless bristles and wild type body color What is the map distance between the ebony body and spineless bristles loci? Group of answer choices 12.2 43.9 24.4 87.8 6.1
- In one variety of silkmoth (bombyx mori) the caterpillar were stripe and the cocoons wear yellow. In other variety, the caterpilaars were not striped and the cocoons were white. From previous crosses, striped was known to be dominant over not striped and yellow over white . The following were the results from the crosses between striped, yellow and not striped, white moths: Striped, yellow 310 striped, white 108 Not Striped, yellow 99 Not striped, white 32 Give the total: ____ Degrees of freedom: _____ Chi-square computed: ____ Accepted Hypothesis:___________ (Round off all answers to 3 decimal places)A tall pea plant (homozygous dominant) is crossed to a pea plant that is heterozygous for the gene for height. Create a Punnett Square and use it to answer the following questions: What is the genotypic ratio of the offspring? What is the phenotypic ratio of the offspring? Answers are written as genotype; phenotype a) 50% TT : 50% Tt; 100% tall plants b) 1 TT : 2 Tt : 1tt; 75% tall plants : 25% dwarf plants c) 1 TT : 2 Tt : 1tt; 25% tall plants : 50% medium height plants : 25% dwarf plantsA fish with red eyes and yellow scales is crossed to a pure-breeding fish with brown eyes and orange scales, resulting in offspring having red eyes and yellow scales (50%) or brown eyes and yellow scales (50%). You cross the red eye/yellow scale offspring together, and the resulting offspring are as follows. How are these traits likely inherited Number of offspring 676-yellow/red 224-red/orange 224-brown/yellow 76-brown/orange