Human ear lobes hang freely due to a dominant gene, while attached lobes are due to recessive genes. a child whose ear lobes are free-hanging has one parent with ears like his, one parent with attached lobes, and one sibling with attached lobes. write the genotype of all 4 people. could other genotypes exist in other children in this family?
Fitness is the survival or reproductive rate in which a genotype or phenotype have the ability to reproduce more successfully or leave offsprings relative to other genotypes or phenotypes. It is the quantitative representation of natural or sexual selection. It is represented by w.
A blood test is used to determine whether the A and/or B characteristics are present in a blood sample. It is not possible to determine the exact genotype from a blood test result of either type A or type B. If someone has blood type A, they must have at least one copy of the A allele, but they could have two copies
a.the length of the longest possible leech is 10mm plus 3*2*2mm = 22mm (if all of 8 alleles are dominant at 3 gene loci)
b.The genotype of the longest leech is AABBCC and the genotype of the shortest is aabbccc
P: AABBCC x aabbcc
F1:AaBbCc (3 dominant alleles 3*2mm) 10+6=16mm
c.F1: AaBbCc x AaBbCc
F2: 1/64 is the probability that F2 offspring will be as long as the longest parent from the P generation
19/64 is the probability that the F2 offspring will be the same length as one of their
d.genotype that would have the same phenotype as AaBBCc is AabbCC or aaBbCC…(all with three dominant alleles)
e.The correct answer is Autosomal Dominant Inheritance.
Apart from AB-type, other genotypes that would be formed will be A- blood type, B- blood type and O-blood type (the probability for each genotype is one-quarter )
As the parents are heterozygous in blood type, the gametes formed will be of IA, IB and i types, and thus the formed genotypes A- blood type, B- blood type and O-blood type will have same probability as that of AB-type.
If assuming PTC as a simple gene trait, what other genotype would you select to put in this missing genotype box that could result in this phenotype? It would be Tt because it has to have a dominant allele to be considered a taster.
The missing box will have genotype Tt
The phenotype will be tasters for PTC as TT, Tt
The taste of PTC is determined by the alleles on the PTC gene. It is a dominant trait. Those who are able to taste PTC have dominant alleles of TT (Homozygous or Tt Heterozygous).
Those having recessive gene tt are said to be non-tasters.
Those with the dominant allele in their PTC gene will find the taste of PTC bitter.
Those with the recessive allele in their PTC gene will find the taste of PTC as tasteless.
Thus genetic make-up of the individual decides their taste. The Phenotype can be either tasters or non-tasters.
TT, Tt (tasters)
tt ( non-tasters)
This follows Mendel's Law of Dominance.
It would be Tt because it has to have a dominant allele to be considered a taster.
The longest possible leech will be 22mm long.Explanation:
As the baseline length of an leech is 10mm and six allele are coding for and each allele is adding 2 mm in it so the possible longest leech will be 22mm long.Answer 2:
The possible length of their F1 generations will be 16mm.Explanation:
As we are mating the longest and shortest possible leeches so the possible genotype of the next generation will be having three dominant alleles so their length will be 16mm long.Answer 3:
When F1 mate each other then the probability of their next generation having the off springs with P1 length is 0.015625 and the probability of F2 having the same length as parent is 0.328125.Answer 4:
AaBbCC or AABBcc or AAbBcC
These all genotypes will have the same phenotype as AaBBCcAnswer 5:
This leech is simply showing the effect of genotype directly on its phenotype. It is also shows the phenomenon of independent assortment. Because every allele is independently showing their effect.
answer: tributaries flow into rivers.
wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.
tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.