The birth and reproduction of Carrier(Heterozygous) organisms, (i.e) heterozygous individuals that have a dominant allele masking the effects of the recessive 'lethal gene.' However even though the gene is masked, it is still there. Therefore, if the heterozygous individual is to reproduce with another heterozygous (carrier) organism there is a higher chance that their offspring will have the active form of the 'lethal gene' causing the death of the offspring.
No because it has the same mass it has just changed its shape
Answer:
The correct answer is - B. Non-disjunction during sperm formation resulted in her receiving no sex chromosome from her father and an X chromosome from her mother; she is XO.
Explanation:
In this case, the mother was a carrier of hemophilia and she transfers that mutant allele to her daughter and as the daughter did not get any sex chromosome from her father.
Therefore, mutant X expresses itself and she is hemophilic.
This X did not express in case, of her mother due to fact that it is a recessive allele and only expresses when both genes is the same state.
Answer:
analogous trait
Explanation:
Analogous traits or structures are the ones that develop as a result of convergent evolution between the distantly related species. The members of these species develop the same features to become adapted to similar environmental conditions. These analogous traits are not present in their ancestors. For example, bats and insects have wings to assist them in flying. However, the wings in bats and insects have a different basic structure.