Answer:
Chromatin is a substance within a chromosome consisting of DNA and protein. The DNA carries the cell's genetic instructions. The major proteins in chromatin are histones, which help package the DNA in a compact form that fits in the cell nucleus. Changes in chromatin structure are associated with DNA replication and gene expression.
Explanation:
Answer:
An ocean current of cold water
Explanation:
Abiotic is non living and water is nonliving
Answer:
27 genotypes and 8 phenotypes
Explanation:
Supposing that the genotypes of both of the parents are AaBbDd (A, B and D are dominant over a, b and d). After completing the Punnett square, you can predict the following offspring:
I add an image where you can see all the 27 genotypes and frequencies.
Finally, all the 8 phenotypes with the following frequencies:
27/64 A-B-D-
9/64 A-B-dd
9/64 A-bbD-
9/64 aaB-D-
3/64 A-bbdd
3/64 aaB-dd
3/64 aabbD-
<u>1/64 aabbdd </u>
Total 64/64
Note: when a phenotype is A-, it means that it came from either genotype, AA or Aa. The same applies to B- (BB or Bb) and D- (DD or Dd)
The alpine biome is one of the coldest biomes on the planet, it is generally because of the high altitudes. The summer temperature varies in between -12 to 10 degree Celsius, and the average precipitation in the biome is about 30 cm in a year.
The animals living in the region, adapt to the cold by migrating to warmer regions, hibernating, or insulating their bodies with the help of fat and fur layers. Their bodies seem to possess shorter tails, legs, and ears, in order to minimize the loss of heat.
One of the animals living in the alpine biome is the wild yak, the animal has adapted to the biome with the help of dense and wooly coats, specially amended feet, horns to dig for food, and if necessary does the migration in winter times to the warmer regions.
Answer:
The answer is in form of image see it ..
