Answer:
The function of the ovum is to carry the set of chromosomes contributed by the female and create the right environment to enable fertilization by the sperm. Ova also provide nutrients for the growing embryo until it sinks into the uterus and the placenta takes over
Explanation:
Answer:
2) codominance
Explanation:
CODOMINANCE is a non-mendelian pattern of inheritance which occurs when the alleles of a particular gene is neither dominant nor recessive over its contrasting allele, hence, they are both expressed in the resulting hybrid when they combine. The two alleles are said to be CODOMINANT.
This is the case in this question involving a gene coding for hair color in cattle. The allele for black hair is codominant with the allele for white hair, hence, they combine to form an hybrid with both colors expressed (black and white) called blue roan.
According to the attached image, the heterozygous genotype in the offspring exhibits a phenotypic expression of both traits under CODOMINANCE inheritance pattern.
Answer:
Option A, 9:7
Explanation:
Given,
Genotype of A-B- have purple color
A-B- have genotype AABB, AaBb, AaBB, AABb
While genotype of A– bb, aa B–, and aa bb have white flowers
A– bb have genotype - AAbb, Aabb
aa B– have genotype aaBb, aaBB
Cross between Aa Bb and AaBb will give following offspring
AB Ab aB ab
AB AABB AABb AaBB AaBb
Ab AABb AAbb AaBb Aabb
aB AaBB AaBb aaBB aaBb
ab AaBb AAbb aaBb aabb
So the possible genotypes and their corresponding phenotypes are
AABB-1 (Purple)
AABb-1 (Purple)
AaBB-3 (Purple)
AaBb -4 (Purple)
AAbb-2 (White)
Aabb-1 (White)
aaBB-1 (White)
aaBb-2 (White)
aabb-1 (White)
Purple : White = 9:7
