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How many number of genes a Chicken (Gallus gallus) has ?
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- Why is it useful to sort male mosquitoes from female mosquitoes?In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette (black and white spotted). 10pts a) What is the genotype for black chickens? b) What is the genotype for white chickens? c) What is the genotype for erminette chickens? d) Two erminette chickens were crossed. Show the Punnett square. e) What’s the probability they would have a black chick? ____% f) What’s the probability they would have a white chick? ____% g) What’s the probability they would have erminette chick? ___ %what is the difference of FISH and karyotype?
- What is the best way to represent the genotype of a cat with a tortoise coatHow many number of genes a Human (Homo sapiens) has ?In rabbits, white fur is a recessive trait. Based on this fact, what statement BEST describes this rabbit's genotype? A) It must have the genotype Bb. B) It is homozygous for fur color. It cannot have the genotype bb. D) It is heterozygous for fur color.
- Why is it useful to sort male mosquitoes from females?Albinism is caused by an autosomal recessive allele that interferes with skin pigmentation in mammals. Two normally pigmented parents already have an albino boy. They plan to have 2 more children. a) What is the probability that their next two children will be normally pigmented? Show your work. b) What is the probability that their next two children will both have albinism? Show your work. c) What is the probability that, when they have 2 more children, they will end up with a family including a total of 2 albino children and one normal? Show your work. d) What is the probability that, when they have two more children, the next child (i.e. the second-born child) will be normal, followed by a child with albinism? Show your work. e) Explain why the answers to part (c) and part (d) are calculated differently.If a heterozygous brown mouse is crossed with a homozygous white mouse, which of the following correctly describes their offspring? CHOOSE ALL THAT APPLY. A)50% are brown B)50% are white C)100% are white D)100% are brown E)100% are light brown
- Zygotic Genes Determine Segment Number and Polarity?In cats, long hair is recessive to short hair. A homozygous short haired male is mated with a long haired female. a) Show the genotypes of the parents, using proper notation. b) What will their kittens look like? What is the best example of genotype: a) the physical appearance of an organism b) the length of stem in a pea plant c) TT d) a short-haired cat a) Show the genotypes of the parents, using proper notation. b) What will their kittens look like?Which statement is false when considering alleles and genes? a) A given gene can have many different possible alleles. b) Alleles are alternative forms or variants of genes. c) Individuals can be homozygous or heterozygous, and this refers to which alleles they have for a particular gene. d) An allele is the same thing as a gene.