"This era includes 3 well known periods called the Triassic, Jurassic, and Cretaceous periods."
Answer: XHXh (Note: the H's are superscripts.)
Explanation:
Hemophilia is a sex-linked recessive trait which means that the males having one altered copy of the gene is enough to cause the medical condition( as they have only one X chromosomes and females have two)
In this case the genotype of father and son is such that they are affected by hemophilia.The son has mother's X chromosome and father's Y chromosome.
XhY is the genotype of father and son. As mother would be heterozygous because she is not affected, her genotype will be XHXh.
Inveterbrate would be a grasshopper
Answer: Fiddleheads or fiddlehead greens are the furled fronds of a young fern, harvested for use as a vegetable. Left on the plant, each fiddlehead would unroll into a new frond (circinate vernation)
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Answer:
The likely cause is pathogenic bacteria.
Explanation:
The pathogenic bacteria are bacteria that cause food poisoning through the contamination of food by faeces. Examples include Salmonella typhi, E. coli, Clostridium botulinum e.t.c.
This means that they are contacted through faecal oral route.
