The pedigree chart below shows the inheritance of a genetic disorder in three generations of one species of insect. Shaded shapes represent individuals that have the disorder.

Which mates are least likely to produce offspring that have the disorder?
A) male 1 and female 2
B.) male 3 and female 4
C.) male 5 and female 6
D.) male 9 and female 10
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C.) male 5 and female 6

Explanation: A pedigree chart represents the inheritance of a specific trait or traits along generations. In the representation, squares are male and circles are female.

The question asks for least likely to have offspring with the disorder. Analysing the chart, it is observed that male 1 and female 2 have offsprings with shaded shapes: individuals 3, 7  and 10, so their probability of having children with the disorder is not small. It's 3 in 5.

Male 3 and female 4 also have an offspring with a genetic disease, so ti's not this couple.

Male 9 and female 10 have 2 offspring with the disorder. So their probability is not so low.

Male 5 and female 6 are the only couple without an offspring with the trait. So, their chance of having an offspring having the disorder is the least.

In conclusion, couple 5 and 6 have the least probability of having an offspring with the genetic disorder.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

the answer is b.) hydrogen bonds between bases.