Northern foxes have black fur as the dominant trait, while red fur as the recessive trait. The genotype for the fur color of northern foxes is given below.
Identify the phenotype for each of the following:
BB: bB: bb: Bb:

BB indicates that the gene is homozygous dominant.

bB: indicates that the gene is heterozygous dominant.

bb: represents that the gene is homozygous recessive.

Bb: shows that the gene is heterozygous dominant.

Explanation:

Capital alphabet is used to describe dominant allele while small alphabet is used to show recessive allel. If both allele are small or capital alphabets so it is homozygous while if both allele are different so it is heterozygous gene.

Northern foxes have black fur as the dominant trait, while red fur as the recessive trait. The genotype for the fur color of northern foxes is given below.

Identify the phenotype for each of the following:

BB: Black fur dominant homozygous

bB: Black fur dominant heterozygous

bb: red fur recessive homozygous

Bb: Black fur dominant heterozygous

Explanation:

what are the choices?

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.