Answer:
d) Protein
Chromatin fibres are wrapped around special proteins called Histones
Hope it helps you
And pls mark it as the brainliest answer
Answer:
A and C
Explanation:
X-linked recessive diseases are disorders caused by a mutation on the X chromosome causes the phenotypic expression in males and only when it is homozygous for females.
A small percentage of women can display the disease phenotype on rare phenomenon such as;
- X-inactivation that favors inactivation of the normal X chromosome
- Turner syndrome (a sex-chromosome aneuploidy in which women have only one X chromosome)
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response.
Answer:
APAP x apap
Explanation:
Let us assume that the allele for wing is represented by ap.
The wild type is the strain that is common in natural condition, that is, winged condition. Hence, since both flies are homozygous, the mutant genotype is depicted as apap, while the wild type's genotype will be denoted as APAP.
The cross will be denoted as: APAP x apap
The offspring will be: APap, APap, APap and APap
Answer:
Has very little friction
Explanation:
If there isn't enough friction stuff can get out of control, but just a little is just right.