Explanation:
The results are explained if the trait blue eyes is dominant (B) over non-blue (b) and the dominant allele B is lethal in homozygous individuals.
<u>The possible genotypes and phenotypes are:</u>
- Homozygous dominant (BB): lethal
- Heterozygous (Bb): blue eyes
- Homozygous recessive (bb): non-blue eyes
When blue (Bb) is crossed with non-blue (bb) the resulting offspring is 1/2 blue (Bb) and 1/2 non-blue (bb).
When non-blues interbreed (bb X bb) all progeny is non-blue (bb).
The A horizon is the best for plant growth, because is has more organic material and more organisms that make the soil more fertile than the deeper layers, and the soil is not loose like the O horizon.
the A horizon
Answer:
B
Explanation:
They are the closest related.
Answer:
Linkage may be defined as the transmission of chromosome to the next generation that are located on same chromosome. Linkage results in the formation of recombination progeny.
PDS (parental ditypes) and non parental diypes can be used to find linkage in the Neurospora and other organism Parental ditypes has the genotype same as parental genotype whereas non parental ditypes contains recombinant progeny. If the ratio and arrangement of PDS and NPDs is 2:4:2 or 2:2:2:2. This means linkage is present between the gene and centromere of an organism.
Answer:
The correct answer is - organ level organization.
Explanation:
The heart is made up of various types of tissues that include muscle tissue, nerve tissue, and blood tissue. All these types of tissues are organized to form the organ level organization which makes the heart is an organ.
Tissues are made up of cells and organs are made up of tissues and various organs combine together to do a specific function, this is an example of an organ system.
Thus, the correct answer is - organ level organization.
