Biology, 06.12.2019 04:31, jazmaine1217
Tay-sachs disease is an autosomal recessive disorder caused by a mutation in the hexa gene that results in progressive deterioration of the nervous system. affected individuals usually die by age 4. let d represent the wildtype allele and d the disease-causing allele. what are the three genotypes and their respective phenotypes (i. e., affected or unaffected)?
dd: dd: dd:
Answers: 3
Biology, 22.06.2019 01:30, vanderrage
All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.
Answers: 1
Biology, 22.06.2019 03:00, CatsandDogsaredabest
During the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.
Answers: 3
Biology, 22.06.2019 07:50, Amholloway13
Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers
Answers: 3
Biology, 22.06.2019 17:00, maleja2038
Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.
Answers: 1
Tay-sachs disease is an autosomal recessive disorder caused by a mutation in the hexa gene that resu...
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