<span>A) The first law - The head moves until a force stops it. </span>
Allele - one of two or more different forms of a gene .
<span>For example, the allele for blue eyes and the allele for brown eyes are different versions of the gene for eye color. or Alleles are located at the same genetic locus . </span>
Answer: one offspring out of the four will have a recessive-recessive genotype.
Explanation: A cross between two parents who are heterozygous for a gene that has a simple dominant-recessive pattern of inheritance will produce four offsprings: one will be homozygous dominant, two will be heterozygous dominant while one will be homozygous recessive.
Homozygous dominant offspring has two dominant alleles, heterozygous dominant offspring has one dominant allele and one recessive allele while a homozygous recessive offspring has two recessive alleles.
For example, a cross between two parents that are heterozygous (Tt) for tall will produce one TT, two Tt and one tt. TT is homozygous dominant, Tt is heterozygous dominant and tt is homozygous recessive. An offspring with genotype tt has a two recessive alleles thus have a recessive-recessive genotype. Therefore the number of offsprings with recessive-recessive genotype is one.
See the attached punnet square for more information
Answer:
Carbides: Carbides are binary compounds formed by carbon and another element with a lower electronegativity. Examples include Al 4 C 3, CaC 2, SiC, TiC, WC.
Carbon Halides: Carbon halides consist of carbon bonded to a halogen. Examples include carbon tetrachloride (CCl 4) and carbon tetraiodide (CI 4 ).
Carboranes: Carboranes are molecular clusters that contain both carbon and boron atoms. An example is H 2 C 2 B 10 H 10.
Explanation: