Answer:
The first male was bb Ee, and the second male was bb EE.
Explanation:
In Labradors coat colour is controlled by two genes. Suppose the two genes are B and E. B produces black colour and recessive form bb gives brown colour. Gene E is epistatic over gene B in its recessive form which means that ee will produce yellow colour regardless of the genotype present of B gene.
The first case is possible if the female lab is bbee (yellow) and the male lab is bbEe (brown):
bbee X bbEe
bE be
be bbEe bbee
So half of the offspring will be brown (bbEe) and half of them will be yellow (bbee)
The second case is possible if the same female bbee mates with a brown male of different genotype which can be bbEE:
bbee X bbEE
bE
be bbEe
So all offspring will be brown (bbEe)
Hence, the first male was bbEe and the second male was bbEE.
<span>The
difference in structure of the antennae and antennules is their size or length.
Antennae are long sensory organs while antennules are short or small sensory organs. These
organs are connected to the head of an insect, crab, or other animal and they
are used for taste, balance, smell, touch, air motion and vibration</span>
Meiosis
Explanation:
The process in maple trees that decreases the chromosome number in the pollen cells from 52 to 26 is called meiosis.
Meiosis is an important cell division process in which diploid cells are turned into their haploid number.
- In meiosis the cells divides into half and produces four daughter cells from the diploid 2n cells.
- The cell divides twice here. It is common in all sexually reproducing cells.
- It also occurs in all single celled organisms that reproduces sexually.
Learn more:
Meiosis brainly.com/question/10762351
#learnwithBrainly
Answer:
C. The graph supports this theory, as it shows a gradual decline in populations of Adelie penguins.
Explanation:
Since Adelie penguins depend on ice to survive, a decline of ice would spell chaos for their survival. And coupled with the fact global warming means a bigger fluctuation of temperatures and a faster melting of ice on Earth, that would line up with the data of the decreasing Adelie penguins.
Hope this helped!
Answer:
1/2
Explanation:
Mendel's law of segregation states that pair of alleles representing a gene segregate during gamete formation and randomly unite during fertilization.
<em>Hence, a gene represented by Rr alleles will segregate into R and r gametes. Out of the two gametes, one will carry R allele while the other one will carry r allele. The probability that a gamete will carry an r allele therefore is 1/2.</em>
