Answer:
carbon, hydrogen, and oxygen.
Explanation:
Answer:
The identity of the organism is they are bacilli a kind of gram negative bacteria.
Explanation:
Bacteria is prokaryotic organism with gram negative cell wall and also have flagella which is spiral shape. Bacilli also have pilli on their body.As the organism is a prokaryotic so it does not have a prominent nuclei.
so the identification is as given that it is a bacilli.
1. Laying eggs on land reduces the chances of the eggs being predated on by predators in the seas and oceans.
2. Temperatures are critical in the development of the yolk into an embryo and full turtle. Temperatures even determine the sex of the developing turtles. Land heats up more than water hence promotes faster development hence increases the survival of the offsprings.
Answer:
equirements of food law, establishing the European Food Safety Authority (EFSA) and laying down procedures in matters of food safety (1). The Authority has its permanent seat in Parma, Italy. According to Article 28 (5) of the Regulation, the Authority's Scientific Committee and Scientific Panels are renewable every three years.
Explanation:
Answer:
a) Y-STR analysis
b) No, but it can rule out if he did <em>not</em>
c) Because his daughter cannot pass a Y chromosome on
d) mitochondrial DNA analysis
Explanation:
a) Because they are tracing male lineage, they are likely carrying out Y STR analysis, which looks at short tandem repeats (STRs) on the Y chromosome. Because the Y chromosome doesn't participate in crossing over, it can be reliably traced back generations and trace the paternal line, because it undergoes very little changes over time.
b) Y-STR analysis is not the best for narrowing complete specificity to one person. The Y chromosome is highly unchanged throughout generations, so it is difficult to determine differences between closely related males. However, it can rule out paternity if the Y-STRs between tested males do not match
c) Only his daughter went on to produce direct descendants still alive today. Because she is female, she could not have harbored the Jefferson Y chromosome, any of her male children will have the Y chromosome of <em>their </em>father. Therefore, they have to look at a male elsewhere in the Jefferson family to match the Y chromosomes, hence the paternal uncle.
d) Mitochondrial DNA is often used to trace maternal ancestry. Mitochondria are organelles in the cell that possess a small amount of DNA. This DNA is passed on through the maternal line (because when the sperm and egg fuse during fertilisation, the egg has thousands more mitochondria in the cell, and therefore contributes thousands of times more mtDNA than the sperm).