This is because some of the trisomies (one extra chromosome, three instead of two) are fatal, births cannot survive.
Theoretically, trisomies can occur with any chromosome, but often result in miscarriage.
The types of autosomal trisomy that survive to birth in humans are:
Trisomy 8 or Warkany syndrome 2
Trisomy 9
Trisomy 13 or Patau syndrome
Trisomy 18 or Edwards syndrom
Trisomy 21 or Down syndrome.
C. Gametes are formed by meiosis and are diploid, while body cells are formed by mitosis and are haploid.
Malleability, Solubility, Melting Point, Conductivity, Density
Answer:
some kinetic energy to electric energy are good. for a hand cranked flash light it takes a lot of physical energy to get the light on for a large amount of time. LEDs are used because they are bright with even a little energy. solar/light energy is very useful aswell
Explanations:
Darwinius is also known as Ida. some scientists have grouped it to be a member of the adapiforms. it's remains were unearthed in Germany. it is regarded as a female because it's skeleton lacks baculum.
Instead of claws darwinius have nails. they could be classified as transitional fossils <u>due to its links with living strepsirrhines and also living haplorhines</u>
similarities with haplorhines:
1. they share similar body structure and tail, also their nails are similar
2. there feeding is almost the same in terms of diet they are carnivores.
similarities with strepsirrhines:
1. they are both mammals
2. they have close body structure and also almost same tail