<span>Polydactyly in its most common form, is an autosomal dominant mutation. Let's represent the mutation as P and the normal state as +. Thus, if both parents are heterozygous (P+), both would have the mutation (and thus have six fingered). They have 3/4 chances of having a child with the extra digit, 1/4 normal. </span>
Answer:
In spite of the fact that he didn't have any acquaintance with it, Walther Flemming really noticed spermatozoa going through meiosis in 1882, yet he confused this cycle with mitosis. Regardless, Flemming saw that, dissimilar to during standard cell division, chromosomes happened two by two during spermatozoan improvement. This perception, continued in 1902 by Sutton's careful estimation of chromosomes in grasshopper sperm cell improvement, given conclusive insights that cell division in gametes was not simply customary mitosis. Sutton showed that the quantity of chromosomes was decreased in spermatozoan cell division, a cycle alluded to as reductive division. Because of this cycle, every gamete that Sutton noticed had one-a large portion of the hereditary data of the first cell.
Explanation:
<span>1. taxonomy is a branch of science concerned with classification of organisms
hence (5) Classification matches with Taxonomy
2.Species is the biological term referring to the basic unit (smallest rank) of classification:
hence (1) smallest unit of classification matches with Species
3.Arthropods are animals which have an exoskeleton, segmented body and paired jointed legs
hence;
(2) segmented digestive system, appendages, matches with Arthropoda and Animal characteristics
4. Tracheophyta refers to green plants which have conductive tissues (vascular tissues) for conducting water and nutrients through them.
The description " (4) Green, conductive tissue, seeds, flowers, and (7) largest division of plants term, they match with Tracheophyta and Plant Characteristics
5. in taxonomy (organisms classification) the Order, ranks in between Class and Family, hence of families makes an Order.
Therefore, (6) groups of families matches with Order</span>
Both of the parents are heterozygous
