Which term describes a type of trait that is usually expressed only when an organism has 2 identical alleles ?

Question

Which term describes a type of trait that is usually expressed only when an organism has two identical alleles for the trait?

A.
dominant

B.
recessive

C.
homozygous

D.
heterozygous

Answer 1

The answer is B.
A recessive trait is only expressed when you have two identical copies of it, otherwise it is masked by the other trait.

Answer 2

question a million- Mendel defined the inheritance of distinctive characteristics, that's plagued via the transmission of a undeniable gene allele. a. question 2- adjustments in eye shade are brought about via people having distinctive alleles for the gene. They the two have the comparable genes, yet in distinctive adjustments. d. question 3. A recessive allele is in basic terms expressed if it somewhat is the only allele contemporary for that gene. The status of having same variations of a gene of the two one in each of a pair of chromosomes is homozygous, however the trait is recessive question 4 Nowt to assert here b.

Answer 3

Start by defining your terms. Dominant refers to a trait that is always expressed no matter how many copies (written as a capital letter, like T = tall). Recessive refers to a trait that is 'dominated over' by dominant traits unless there are no dominant traits present (written as lower case letter, like t= short).

Homo= same, therefore refers to two identical traits (ie. TT or tt)
Hetero= other, therefore refers to two different traits (ie. Tt)

Now do a process of elimination!

Answer 4

recessive
coz homozygous is a condition when two alleles are the same.
thts the "situation" described in the question.
only a recessive trait is expressed in a homozygous condition.

Answer 5

Recessive, final answer, no doubts about it

Answer 6

A. Dominant

Answer 7

C. Homologous.